WHO's Investigations and Studies, Unity Studies: A global initiative creating equitable opportunities for enhanced surveillance, operational research, capacity building, and global knowledge sharing.

The World Health Organization's Unity Studies global initiative provides a generic preparedness and readiness framework for conducting detailed investigations and epidemiological studies critical for the early and ongoing assessment of emerging respiratory pathogens of pandemic potential. During the COVID-19 pandemic, the initiative produced standardized investigation protocols and supported Member States to generate robust and comparable data to inform public health decision making. The subsequent iteration of the initiative is being implemented to develop revised and new investigation protocols, implementation toolkits and work to build a sustainable global network of sites, enabling the global community to be better prepared for the next emerging respiratory pathogen with epidemic or pandemic potential.

TB operational research in India - Gaps and pragmatic solutions.

Operational research (OR) plays a pivotal role in the management and improvement of national tuberculosis (TB) programs in India. This article underscores the indispensable value of OR in optimizing resource allocation, enhancing treatment protocols, improving diagnostics, ensuring patient adherence, monitoring program performance, and informing policy decisions. However, it is vital to address existing gaps in the operational research mechanisms of the National Tuberculosis Elimination Program (NTEP) in India to maximize its effectiveness. In conclusion, India's healthcare system can significantly benefit from the systematic implementation of operational research, especially in the context of TB control. To achieve this, India must continue to invest in research infrastructure, enhance research capacity among healthcare professionals, and promote collaboration among researchers, healthcare providers, and policymakers. By doing so, India can harness the power of operational research to lead the fight against TB and enhance the well-being of its citizens.

Expanding the roles of community health workers to sustain programmes during malaria elimination: a meeting report on operational research in Southeast Asia.

In Southeast Asia malaria elimination is targeted by 2030. Cambodia aims to achieve this by 2025, driven in large part by the urgent need to control the spread of artemisinin-resistant falciparum malaria infections. Rapid elimination depends on sustaining early access to diagnosis and effective treatment. In much of Cambodia, rapid elimination will rely on a village malaria worker (VMW) network. Yet as malaria declines and is no longer a common cause of febrile illness, VMWs may become less popular with febrile patients, as VMWs do not diagnose or treat other conditions at present. There is a risk that VMWs become inactive and malaria rebounds before the complete interruption of transmission is achieved.During 2021-23 a large-scale operational research study was conducted in western Cambodia to explore how a VMW network could be sustained by including health activities that cover non-malarial illnesses to encourage febrile patients to continue to attend. 105 VMWs received new rapid diagnostic tests (including dengue antigen-antibody and combined malaria/C-reactive protein tests), were trained in electronic data collection, and attended health education packages on hygiene and sanitation, disease surveillance and first aid, management of mild illness, and vaccination and antenatal care.In August 2023 the National Malaria Control Programme of Cambodia convened a stakeholder meeting in Battambang, Cambodia. Findings from the study were reviewed in the context of current malaria elimination strategies. The discussions informed policy options to sustain the relevance of the VMW network in Cambodia, and the potential for its integration with other health worker networks. This expansion could ensure VMWs remain active and relevant until malaria elimination is accomplished.

A 'training of trainers' programme for operational research: increasing capacity remotely.

BACKGROUND: Operational research (OR) is a process to improve health system capacity by evaluating interventions to improve health delivery and outcomes. The World Health Organization (WHO) Structured Operational Research Training Initiative (SORT-IT) programme promotes how OR contributes to improved health care delivery and health outcomes. A partnership project between the International Institute of Primary Health Care (IPHCE) in Ethiopia and The University of Queensland (UQ) in Australia modified the SORT-IT programme to deliver a hybrid Training of Trainers programme and improve OR capacity. OBJECTIVE: This study was performed to develop and evaluate the effectiveness of Train-the Trainers approach in building capability to expand the capacity of the IPHCE to deliver the SORT-IT programme. METHODS: Recruitment of participants and training were aligned with the principles of the SORT-IT programme. Training was face-to-face for the first session with subsequent training sessions delivered via Zoom over a 13-week period. Participants were required to complete all activities in line with SORT-IT deliverables. Slide decks supporting the SORT-IT training videos were developed and adapted to the Ethiopian context. RESULTS: Participants had diverse experience from programme directors to research officers. All training sessions were recorded and available for participants to watch and review when required. All participants completed OR protocols to the draft stage. Course evaluation revealed participants found the content and format of the training useful, pertinent, and interesting. CONCLUSION: A hybrid model (face-to-face and video platform) for OR training was implemented. Managing contextual challenges such as information technology were managed easily by programme staff. Translating course requirements at a management level proved challenging with data collection for the protocols but provided insight into potential future challenges. This OR Training of Trainers course demonstrated that sharing of skills and knowledge can occur through a hybrid delivery model and contribute to developing capacity.

Strategic optimization of patient flow and staffing schemes during the COVID-19 pandemic through Operations Management in a Neonatal Intensive Care Unit

Background@#The COVID-19 pandemic posed challenges in making time-bound hospital management decisions. The University of the Philippines -Philippine General Hospital (UP-PGH) is a tertiary COVID-19 referral center located in Manila, Philippines. The mismatch of increasing suspected or confirmed COVID-19 infected mothers with few documented cases of infected infants has caused significant patient overflow and manpower shortage in its NICU.@*Objective@#We present an evaluated scheme for NICU bed reallocation to maximize capacity performance, staff rostering, and resource conservation, while preserving COVID-19 infection prevention and control measures.@*Methods@#Existing process workflows translated into operational models helped create a solution that modified cohorting and testing schemes. Staffing models were transitioned to meet patient flow. Outcome measurements were obtained, and feedback was monitored during the implementation phase.@*Results@#The scheme evaluation demonstrated benefits in (a) achieving shorter COVID-19 subunit length of stay; (b) better occupancy rates with minimal overflows; (c) workforce shortage mitigation with increased non-COVID workforce pool; (d) reduced personal protective equipment requirements; and (e) zero true SARS-CoV-2 infections.@*Conclusion@#Designed for hospital operations leaders and stakeholders, this operations process can aid in hospital policy formulation in modifying cohorting schemes to maintain quality NICU care and service during the COVID-19 pandemic.

Replacement of core team members on embedded implementation research teams: experiences from Latin America and the Caribbean

[ABSTRACT]. Objective. To understand how replacement of decision-makers (DMs) serving as principal investigators (PI) or co-PIs on research teams may affect the feasibility and value of embedded implementation research (EIR) used to improve health policies, programs, and services in Latin America and the Caribbean. Methods. This was a descriptive qualitative study based on 39 semistructured interviews with 13 embedded research teams selected by financing agencies to explore team composition, interaction among members, and research results. Interviews were conducted at three points during the study period from September 2018 to November 2019; data were analyzed from 2020 to 2021. Results. Research teams were found to be operating in one of three situations: (i) permanent core team (no change) with either active DM or inactive DM participation; (ii) replacement of DM–PI or co-PI that did not affect EIR research; and (iii) replacement of DM–PI that affected EIR. Conclusions. To ensure EIR continuity and stability, research teams should include high-level DMs together with more technical staff performing essential implementation activities. This structure could improve collab- oration among professional researchers and ensure greater embeddedness of EIR to strengthen the health system.

[RESUMEN]. Objetivo. Comprender de qué manera la sustitución de los responsables de tomar decisiones (RTD) que se desempeñan como investigadores principales (IP) o coinvestigadores principales (coIP) en los equipos de investigación puede incidir en la viabilidad y el valor de la investigación integrada en materia de ejecución (IIME) utilizada con el objetivo de mejorar las políticas, los programas y los servicios de salud en América Latina y el Caribe. Métodos. Este estudio cualitativo descriptivo se basó en 39 entrevistas semiestructuradas realizadas a 13 equipos de investigación integrada seleccionados por organismos de financiación con el objetivo de estudiar la composición de los equipos, la interacción entre sus miembros y los resultados de la investigación. Las entrevistas se realizaron en tres ocasiones durante el período de estudio, que se extendió de septiembre del 2018 a noviembre del 2019; los datos se analizaron entre el 2020 y el 2021. Resultados. Se encontró que los equipos de investigación se desempeñaban en una de las siguientes tres situaciones: a) un equipo central permanente (sin cambios), sea con participación activa del RTD o sin par- ticipación activa del mismo; b) sustitución del RTD–IP o coIP, sin consecuencias para la IIME; y c) sustitución del RTD–IP, con consecuencias para la IIME. Conclusiones. Para asegurar la continuidad y estabilidad de la IIME, los equipos de investigación deberían incluir RTD de alto nivel junto con más personal técnico que lleve a cabo actividades esenciales en materia de ejecución. Esta estructura podría mejorar la colaboración entre los investigadores profesionales y asegurar una mayor integración de la IIME con la finalidad de fortalecer el sistema de salud.

[RESUMO]. Objetivo. Mapear políticas relacionadas à prevenção e ao controle da resistência aos antimicrobianos na perspectiva da saúde humana no Brasil e sistematizar a evolução histórica dessas políticas. Método. Desenvolveu-se uma revisão de escopo conforme as diretrizes do Instituto Joana Briggs e PRISMA. A busca na literatura foi realizada em dezembro de 2020 nas bases de dados LILACS, PubMed e EMBASE. Utilizaram-se os termos “antimicrobial resistance” AND “Brazil” e sinônimos. Uma pesquisa documental com os mesmos termos foi conduzida nos sites eletrônicos do governo brasileiro até dezembro de 2021. Foram incluídos estudos de todos os desenhos, sem restrição de idioma ou data. Excluíram-se documentos clínicos, revisões e estudos epidemiológicos que não referenciavam políticas de gestão da resistência aos antimicrobianos no Brasil. Para coleta e análise de dados, estabeleceram-se categorias baseadas em documentos da Organização Mundial da Saúde. Resultados. Desde antes da criação do Sistema Único de Saúde, o Brasil possuía políticas relacionadas à resistência aos antimicrobianos, como o Programa Nacional de Imunização e programas de controle de infecção hospitalar. No final das décadas de 1990 e 2000, estabeleceram-se as primeiras políticas específicas sobre resistência aos antimicrobianos (redes e programas de vigilância) e estratégias de educação. Desta- ca-se o Plano de Ação Nacional de Prevenção e Controle da Resistência aos Antimicrobianos no Âmbito da Saúde Única (PAN-BR), de 2018. Conclusões. Apesar do longo histórico de políticas relacionadas à resistência aos antimicrobianos no Brasil, foram identificadas lacunas, sobretudo no monitoramento da utilização de antimicrobianos e na vigilância da resistência aos antimicrobianos. O PAN-BR, primeiro documento de governo elaborado na perspectiva One Health, é um marco nas políticas brasileiras.

Investigación operativa para fortalecer las intervenciones basadas en la evidencia para abordar la resistencia a los antimicrobianos en la Región de las Américas

[EXTRACTO] La resistencia a los antimicrobianos es una de las mayores amenazas para la salud pública en todo el mundo. Esta resistencia, asociada principalmente con el uso excesivo e indebido de antimicrobianos en seres humanos, en la medicina veterinaria y en la agricultura y ganadería, se exacerbó durante la pandemia de COVID-19 (1). Limitar la aparición y propagación de agentes patógenos resistentes a los antimicrobianos es fundamental para mantener la capacidad de tratar enfermedades en seres humanos, animales y plantas; mejorar la inocuidad de los alimentos y proteger el medioambiente. Este número especial de la Revista Panamericana de Salud Pública está dedicado a iniciativas de investigación operativa a fin de fortalecer las intervenciones basadas en la evidencia para abordar la resistencia a los antimicrobianos en la Región de las Américas. Es un esfuerzo conjunto entre la OPS y el TDR de la OMS, con varios asociados de SORT IT. En este número se presenta una selección de estudios científicos realizados en Colombia y Ecuador, y se busca generar evidencia científica sobre aspectos relevantes del enfoque de “Una salud”. La evidencia generada por estos estudios fortalecerá los planes de acción sobre la resistencia a los antimicrobianos en Colombia y Ecuador.

High level of infection prevention and control in surveyed hospitals in Colombia, 2021

[ABSTRACT]. Objective. This study aimed to determine the performance of infection prevention and control (IPC) programs in eight core components in level 2 and level 3 hospitals across all provinces in Colombia. Methods. This cross-sectional study used self-assessed IPC performance data voluntarily reported by hospi- tals to the Ministry of Health and Social Protection during 2021. Each of the eight core components of the World Health Organization’s checklist in the Infection Prevention and Control Assessment Framework contributes a maximum score of 100, and the overall IPC performance score is the sum of these component scores. IPC performance is graded according to the overall score as inadequate (0–200), basic (201–400), intermediate (401–600) or advanced (601–800). Results. Of the 441 level 2 and level 3 hospitals, 267 (61%) reported their IPC performance. The median (interquartile range [IQR]) overall IPC score was 672 (IQR: 578–715). Of the 267 hospitals reporting, 187 (70%) achieved an advanced level of IPC. The median overall IPC score was significantly higher in private hospitals (690, IQR: 598–725) than in public hospitals (629, IQR: 538–683) (P < 0.001). Among the core components, scores were highest for the category assessing IPC guidelines (median score: 97.5) and lowest for the cate- gory assessing workload, staffing and bed occupancy (median score: 70). Median overall IPC scores varied across the provinces (P < 0.001). Conclusions. This countrywide assessment showed that 70% of surveyed hospitals achieved a self-reported advanced level of IPC performance, which reflects progress in building health system resilience. Since only 61% of eligible hospitals participated, an important next step is to ensure the participation of all hospitals in future assessments.

[RESUMEN]. Objetivo. El objetivo de este estudio es determinar el desempeño de los programas de prevención y control de infecciones (PCI) en relación con ocho componentes básicos en hospitales de nivel 2 y 3 de todas las provincias de Colombia. Métodos. En este estudio transversal se emplearon datos de autoevaluación del desempeño de los programas de PCI informados voluntariamente al Ministerio de Salud y Protección Social por parte de los hospitales durante el 2021. Cada uno de los ocho componentes básicos de la lista de verificación de la Organización Mundial de la Salud incluidos en el Marco de evaluación de prevención y control de infecciones al nivel de establecimientos de atención de salud recibe una puntuación máxima de 100, y la puntuación general del desempeño del programa es la suma de las puntuaciones de estos componentes. Este desempeño se califica según la puntuación general como inadecuado (0-200), básico (201-400), intermedio (401-600) o avanzado (601-800). Resultados. De los 441 hospitales de nivel 2 y nivel 3, 267 (61%) informaron datos sobre su desempeño. La mediana (rango intercuartil [IQR]) de la puntuación general fue de 672 (IQR: 578–715). De los 267 hospi- tales que proporcionaron información, 187 (70%) alcanzaron el nivel avanzado. La mediana de la puntuación general fue significativamente mayor en los hospitales privados (690, IQR: 598-725) que en los hospitales públicos (629, IQR: 538-683) (p < 0,001). En el caso de los componentes básicos, las puntuaciones más altas fueron para la categoría que evalúa las directrices de PCI (puntuación mediana: 97,5) y más bajas para la categoría que evalúa la carga de trabajo, la dotación de personal y la ocupación de camas (puntuación mediana: 70). La mediana de las puntuaciones generales de PCI varió entre las provincias (p < 0,001). Conclusiones. Esta evaluación a nivel nacional mostró que el 70% de los hospitales encuestados lograron un nivel avanzado autoinformado del desempeño en cuanto a la PCI, lo que refleja el progreso en fortalec- imiento de la resiliencia del sistema de salud. Dado que solo participó el 61% de los hospitales que reunían las condiciones, el siguiente paso importante es garantizar la participación de todos los hospitales en futuras evaluaciones.

[RESUMO]. Objetivo. Este estudo teve o objetivo de determinar o desempenho de programas de prevenção e controle de infecções (PCI) quanto a oito componentes centrais em hospitais secundários e terciários de todas as províncias da Colômbia. Métodos. Este estudo transversal utilizou dados de desempenho autoavaliado de PCI enviados voluntaria- mente pelos hospitais ao Ministério da Saúde e Proteção Social em 2021. Cada um dos oito componentes centrais da lista de verificação na Estrutura de Avaliação de Prevenção e Controle de Infecções da Organi- zação Mundial da Saúde contribui com uma pontuação máxima de 100. A pontuação total de desempenho de PCI é a soma das pontuações nesses componentes. De acordo com a pontuação total, o desempenho de PCI é classificado nas seguintes categorias: inadequado (0-200), básico (201-400), intermediário (401-600) ou avançado (601-800). Resultados. Dos 441 hospitais secundários e terciários, 267 (61%) informaram o desempenho de PCI. A mediana (intervalo interquartil [IIQ]) da pontuação total de PCI foi 672 (IIQ: 578-715). Dos 267 hospitais que disponibilizaram informações, 187 (70%) alcançaram um nível de PCI avançado. A mediana da pontuação total de PCI foi significativamente maior nos hospitais privados (690, IIQ: 598-725) do que nos públicos (629, IIQ: 538-683) (p < 0,001). Entre os componentes centrais, as pontuações mais altas foram observadas na cat- egoria de avaliação das diretrizes de PCI (pontuação mediana: 97,5), ao passo que as mais baixas ocorreram na categoria de avaliação da carga de trabalho, dotação de pessoal e taxa de ocupação de leitos (pontuação mediana: 70). As medianas das pontuações totais de PCI variaram entre províncias (p < 0,001). Conclusões. Esta avaliação nacional mostrou que 70% dos hospitais pesquisados alcançaram um nível avançado de desempenho autorrelatado de PCI, o que demonstra progresso no desenvolvimento de resiliência no sistema de saúde. Como apenas 61% dos hospitais elegíveis participaram, um próximo passo importante é assegurar a participação de todos os hospitais em futuras avaliações.

Operational research to strengthen evidence-based interventions to tackle antimicrobial resistance in the Region of the Americas

[EXTRACT] Antimicrobial resistance (AMR) is known to be among the most substantial threats to public health around the world. Mainly associated with the over- and misuse of antimicrobials in human and veterinary medicine and agriculture, AMR was exacerbated during the COVID-19 pandemic. Limiting the emergence and spread of AMR pathogens is critical to preserving the ability to treat diseases in humans, animals, and plants; to enhancing food safety; and to protecting the environment. This special issue of the Pan American Journal of Public Health is dedicated to operational research initiatives to strengthen evidence-based interventions to tackle AMR in the Region of the Americas. This is a joint effort among PAHO and the WHO TDR program and various SORT IT partners. This issue presents a select number of scientific studies conducted in Colombia and Ecuador and seeks to generate scientific evidence on relevant aspects of One Health. The findings of these studies have generated evidence that will strengthen AMR action plans in Colombia and Ecuador.

Antibiotic consumption in secondary and tertiary hospitals in Colombia: national surveillance from 2018–2020

[ABSTRACT]. Objective. To assess the compliance in secondary and tertiary level hospitals with monthly reporting of antibi- otic consumption to the Colombian National Public Health Surveillance System (SIVIGILA-INS), and to describe reported antibiotic consumption during 2018–2020. Methods. This study involved a secondary analysis of antibiotic consumption data reported to SIVIGILA-INS. Frequency of hospital reporting was assessed and compared against expected reports, disaggregated by intensive care units (ICU)/non-ICU wards and geographical regions. Consumption was expressed as defined daily dose (DDD) per 100 occupied beds for seven antibiotics. Results. More than 70% of hospitals reported antibiotic consumption at least once in each of the three years (79% in ICU and 71% in non-ICU wards). Of these, ICU monthly reporting was complete (12 monthly reports per year) for 59% in the period 2018–2019 but only 4% in 2020. Non-ICU reporting was complete for 52% in 2019 and for 2% in 2020. Most regions had an overall decrease in reporting in 2020. Analysis of antibiotic consumption showed an increase for piperacillin/tazobactam, ertapenem, and cefepime from 2019 to 2020. Conclusions. There were gaps in the consistency and frequency of reporting. Efforts are needed to improve compliance with monthly reporting, which declined in 2020, possibly due to the COVID-19 pandemic. Non-compliance on reporting and data quality issues should be addressed with the hospitals to enable valid interpretation of antibiotic consumption trends.

[RESUMEN]. Objetivo. Evaluar el cumplimiento de los hospitales de segundo y tercer nivel en la presentación mensual de información sobre el consumo de antibióticos en el Sistema Nacional de Vigilancia en Salud Pública de Colombia (SIVIGILA-INS) y describir el consumo de antibióticos reportado en el período 2018-2020. Métodos. Este estudio incluyó un análisis secundario de los datos del consumo de antibióticos reportado en SIVIGILA-INS. Se evaluó la frecuencia de los informes hospitalarios y se comparó con los informes esperados, desglosados por unidad de cuidados intensivos (UCI) y otros servicios distintos a la UCI, y por región geográ- fica. El consumo se expresó en dosis diaria definida (DDD) por 100 camas ocupadas para siete antibióticos. Resultados. Más del 70% de los hospitales notificaron el consumo de antibióticos al menos una vez en cada uno de los tres años (79% en la UCI y 71% en los servicios distintos a la UCI). De estos, el 59% de las UCI completaron los informes mensuales (12 informes en un año) entre el 2018 y el 2019, pero solo el 4% en el 2020. El 52% de los servicios distintos a la UCI completó los informes en el 2019 y el 2% en el 2020. En la mayoría de las regiones hubo una disminución general de la notificación en el 2020. El análisis del consumo de antibióticos mostró un aumento de piperacilina/tazobactam, ertapenem y cefepima del 2019 al 2020. Conclusiones. Se encontraron disparidades en la coherencia y en la frecuencia de la presentación de informes. Es necesario destinar esfuerzos para mejorar el cumplimiento de la notificación mensual, que disminuyó en el 2020 posiblemente debido a la pandemia de COVID-19. La falta de cumplimiento en la pre- sentación de los reportes y los problemas de calidad de los datos deben abordarse con los hospitales para facilitar la interpretación válida de las tendencias de consumo de antibióticos.

[RESUMO]. Objetivo. Avaliar o cumprimento da exigência de notificar mensalmente o consumo de antibióticos em hospi- tais secundários e terciários ao Sistema Nacional de Vigilância em Saúde Pública da Colômbia (SIVIGILA-INS) e descrever o consumo informado de antibióticos de 2018 a 2020. Métodos. Este estudo envolveu uma análise secundária dos dados de consumo de antibióticos enviados para o SIVIGILA-INS. A frequência de notificação pelos hospitais foi avaliada e comparada com a frequência esperada. Os dados foram desagregados entre unidades de terapia intensiva (UTIs) e enfermarias gerais e por regiões geográficas. O consumo foi expresso como dose diária definida (DDD) por 100 leitos ocupados para sete antibióticos. Resultados. Mais de 70% dos hospitais notificaram consumo de antibióticos pelo menos uma vez em cada um dos três anos (79% na UTI e 71% nas enfermarias gerais). Entre eles, 59% dos hospitais enviaram todas as notificações relativas a UTIs (12 notificações mensais) no período de 2018 a 2019, mas apenas 4% o fiz- eram em 2020. No caso das enfermarias gerais, 52% dos hospitais enviaram todas as notificações em 2019 e 2% o fizeram em 2020. A maioria das regiões teve uma diminuição geral no número de notificações envia- das em 2020. A análise do consumo de antibióticos revelou um aumento no uso de piperacilina/tazobactam, ertapeném e cefepima de 2019 para 2020. Conclusões. Houve lacunas na uniformidade e frequência das notificações. São necessários esforços para melhorar o cumprimento da exigência de notificações mensais, que, possivelmente devido à pandemia de COVID-19, diminuiu em 2020. Problemas relacionados ao não cumprimento da exigência de notificação e à qualidade dos dados devem ser resolvidos junto aos hospitais para permitir uma interpretação válida das tendências de consumo de antibióticos.

Prevalence and antimicrobial resistance of Escherichia coli and Salmonella spp. in animal feed in Colombia

[ABSTRACT]. Objective. To determine the prevalence and antimicrobial resistance of Escherichia coli and Salmonella spp. in animal feed samples collected between 2018 and 2021 in Colombia. Methods. This was a laboratory-based cross-sectional study using routine data from the program for inspec- tion, surveillance, and control of animal feed at the Colombian Agriculture Institute. Samples of animal feed for swine, poultry, canine, feline, leporine, piscine, and equine species were processed for detection of E. coli and Salmonella spp. using enrichment and selective culture methods. Isolates were tested for antimicrobial susceptibility using an automated microdilution method. Results. Of 1 748 animal feed samples analyzed, 83 (4.7%) were positive for E. coli and 66 (3.8%) for Salmonella spp. The presence of E. coli and Salmonella spp. was highest in feed for poultry (6.4% and 5.5%) and swine (6.1% and 4.3%). Antimicrobial resistance testing was performed in 27 (33%) E. coli isolates and 26 (39%) Salmonella isolates. Among E. coli, resistance was most frequently observed to ampicillin (44.5%) followed by cefazolin (33.3%), ciprofloxacin (29.6%), ampicillin/sulbactam (26%), and ceftriaxone (11.1%). The highest resistance levels in Salmonella spp. isolates were against cefazolin (7.7%) and piperacillin/tazobactam (7.7%). Conclusions. This is the first study from Colombia reporting on the prevalence and antimicrobial resistance of E. coli and Salmonella spp. in animal feed samples. Its results establish a baseline over a wide geographical distribution in Colombia. It highlights the need to integrate antimicrobial resistance surveillance in animal feed due to the emergence of resistant bacteria in this important stage of the supply chain.

[RESUMEN]. Objetivo. Determinar la prevalencia y resistencia a los antimicrobianos de Escherichia coli y Salmonella spp. en muestras de piensos para animales tomadas entre el 2018 y el 2021 en Colombia. Métodos. Se trata de un estudio transversal realizado en el laboratorio a partir de los datos regulares del programa de inspección, vigilancia y control de alimentos para animales del Instituto Colombiano Agropec- uario. Se procesaron muestras de alimentos utilizados en la cría de cerdos, aves de corral, cánidos, félidos, lepóridos, peces y equinos con el fin de detectar E. coli y Salmonella spp. por medio de métodos de enriquec- imiento y cultivo selectivo. Se analizó la sensibilidad a los antimicrobianos de las cepas aisladas mediante microdilución automatizada. Resultados. De 1748 muestras de alimentos analizadas, 83 (4,7%) resultaron positivas para E. coli y 66 (3,8%) para Salmonella spp. La presencia de E. coli y Salmonella spp. fue mayor en los alimentos para aves de corral (6,4% y 5,5%) y cerdos (6,1% y 4,3%). Se realizaron pruebas de resistencia a los antimicrobianos en 27 (33%) cepas de E. coli y 26 (39%) de Salmonella. En las cepas de E. coli, se observó una mayor resis- tencia a la ampicilina (44,5%), seguida de la resistencia a la cefazolina (33,3%), la ciprofloxacina (29,6%), la ampicilina/sulbactam (26%) y la ceftriaxona (11,1%). En el caso de las cepas de Salmonella spp., los niveles de resistencia más elevados fueron para la cefazolina (7,7%) y piperacilina/tazobactam (7,7%). Conclusiones. Este es el primer estudio realizado en Colombia en el que se informa sobre la prevalencia y la resistencia a los antimicrobianos de E. coli y Salmonella spp. en muestras de alimentos para animales. Sus resultados establecen una línea de base para una zona geográfica mucho mayor dentro de Colombia. Se subraya la necesidad de integrar la vigilancia de la resistencia a los antimicrobianos en los alimentos para animales debido a la aparición de bacterias resistentes en esta importante etapa de la cadena de suministro.

[RESUMO]. Objetivo. Determinar a prevalência e a resistência a antimicrobianos de Escherichia coli e Salmonela spp. em amostras de ração animal coletadas entre 2018 e 2021 na Colômbia. Métodos. Estudo transversal de base laboratorial, usando dados de rotina do programa de inspeção, vig- ilância e controle de ração animal do Instituto Colombiano de Agricultura. Amostras de ração animal para as espécies suína, avícola, canina, felina, leporina, piscina e equina foram processadas para detecção de E. coli e Salmonella spp., usando métodos de enriquecimento e cultura seletiva. Os isolados foram testados quanto à suscetibilidade a antimicrobianos usando um método automatizado de microdiluição. Resultados. Das 1.748 amostras de ração animal analisadas, 83 (4,7%) foram positivas para E. coli e 66 (3,8%) para Salmonella spp. A presença de E. coli e Salmonella spp. foi maior em rações para aves (6,4% e 5,5%) e suínos (6,1% e 4,3%). O teste de resistência a antimicrobianos foi realizado em 27 (33%) isolados de E. coli e 26 (39%) isolados de Salmonella. Em E. coli, a resistência observada com maior frequência foi à ampicilina (44,5%), seguida da cefazolina (33,3%), ciprofloxacino (29,6%), ampicilina/sulbactam (26%) e ceftriaxona (11,1%). Os maiores níveis de resistência em isolados de Salmonella spp. foram contra cefazolina (7,7%) e piperacilina/tazobactam (7,7%). Conclusões. Este é o primeiro estudo da Colômbia a notificar a prevalência e resistência a antimicrobianos de E. coli e Salmonella spp. em amostras de ração animal. Os resultados estabelecem uma linha de base com ampla distribuição geográfica na Colômbia. Destaca-se a necessidade de integrar a vigilância da resistência a antimicrobianos na ração animal, devido ao surgimento de bactérias resistentes nesta importante etapa da cadeia de abastecimento.

Colistin resistance in Escherichia coli and Klebsiella pneumoniae in humans and backyard animals in Ecuador

[ABSTRACT]. Objective. Colistin is an antibiotic of last resort for treating serious Gram-negative bacterial infections. However, the misuse of colistin, especially as an animal growth promoter, has contributed to increasing antimicrobial resistance, mediated mainly through plasmid transfer of the mcr-1 gene. This study assessed the prevalence of phenotypic and molecular colistin resistance in Escherichia coli and Klebsiella pneumoniae in Ecuador in healthy humans and their chickens and pigs. Methods. Fecal samples were collected from humans and their chickens and pigs in two rural coastal and Amazon regions between April and August 2020. Gram-negative bacteria were isolated and identified using conventional techniques. Phenotypic resistance was determined using the broth microdilution technique, and the mcr-1 gene was detected using conventional polymerase chain reaction. Results. A total of 438 fecal samples were obtained from 137 humans, 147 pigs and 154 chickens. The preva- lence of E. coli isolates was 86.3% (378/438) and K. pneumoniae, 37.4% (164/438). Overall, the mcr-1 gene was found in 90% (340/378) of E. coli isolates, with higher prevalences found in isolates from coastal regions (96.5%, 191/198), humans (95.6%, 111/116) and chickens (91.8%, 123/134); for K. pneumoniae, the gene was found in 19.5% (32/164) of isolates, with equal distribution between regions and hosts. Only four isolates, two E. coli and two K. pneumoniae, showed phenotypic resistance: mcr-1 was present in both E. coli strains but absent in the K. pneumoniae strains. Conclusions. Despite a low prevalence of phenotypic resistance to colistin, the high prevalence of the mcr-1 gene in E. coli is of concern. Ecuador’s ban on using colistin in animal husbandry must be enforced, and con- tinual monitoring of the situation should be implemented.

[RESUMEN]. Objetivo. La colistina es un antibiótico de último recurso para tratar infecciones graves por bacterias gramneg- ativas. Sin embargo, su uso indebido, especialmente para estimular el crecimiento animal, ha contribuido con el aumento de la resistencia a los antimicrobianos, mediada principalmente por la transferencia de plásmidos del gen mcr-1. En este estudio se evaluó la prevalencia de la resistencia fenotípica y molecular a la colistina de las bacterias Escherichia coli y Klebsiella pneumoniae en humanos sanos, sus pollos y cerdos en Ecuador. Métodos. Se recolectaron muestras fecales de humanos, así como de sus pollos y cerdos, en dos zonas rurales de la región costera y la región amazónica entre abril y agosto del 2020. Se aislaron las bacterias gramnegativas y se identificaron empleando técnicas convencionales. Se determinó la resistencia fenotípica mediante la técnica de microdilución en caldo y se detectó el gen mcr-1 con la técnica convencional de reac- ción en cadena de la polimerasa. Resultados. Se obtuvo un total de 438 muestras fecales de 137 humanos, 147 cerdos y 154 pollos. La preva- lencia de E. coli en las cepas aisladas fue del 86,3% (378/438) y la de K. pneumoniae, del 37,4% (164/438). En general, se detectó el gen mcr-1 en el 90% (340/378) de las cepas aisladas de E. coli y la mayor prevalencia encontrada fue en cepas aisladas de la región costera (96,5%, 191/198), humanos (95,6%, 111/116) y pollos (91,8%, 123/134); en el caso de K. pneumoniae, el gen se encontró en el 19,5% (32/164) de las cepas, con una distribución equitativa entre regiones y hospedadores. Únicamente cuatro cepas aisladas, dos de E. coli y dos de K. pneumoniae, mostraron resistencia fenotípica: el gen mcr-1 estaba presente en ambas cepas de E. coli y ausente en las cepas de K. pneumoniae. Conclusiones. Si bien hubo una baja prevalencia de resistencia fenotípica a la colistina, la alta prevalencia del gen mcr-1 en E. coli es preocupante. Es necesario hacer cumplir la prohibición del uso de colistina en la cría de animales en Ecuador, así como realizar un seguimiento continuo de la situación.

[RESUMO]. Objetivo. A colistina é um antibiótico de último recurso para o tratamento de infecções graves por bac- térias Gram-negativas. Entretanto, o uso indevido da colistina, principalmente como promotor de crescimento animal, tem contribuído para o aumento da resistência a antimicrobianos, principalmente por transferência horizontal do gene mcr-1 mediada por plasmídeos. Este estudo avaliou a prevalência de resistência fenotípica e molecular à colistina em Escherichia coli e Klebsiella pneumoniae no Equador em humanos hígidos e em galinhas e porcos por eles criados. Métodos. Entre abril e agosto de 2020, foram coletadas amostras de fezes de habitantes de duas regiões litorâneas e amazônicas do Equador e de galinhas e porcos por eles criados. Bactérias Gram-negativas foram isoladas e identificadas por meio de técnicas convencionais. A resistência fenotípica foi determinada pela técnica de microdiluição em caldo, e o gene mcr-1 foi detectado por reação em cadeia da polimerase convencional. Resultados. Foram obtidas 438 amostras fecais de 137 humanos, 147 suínos e 154 galinhas. A prevalência de isolados de E. coli foi de 86,3% (378/438), e de K. pneumoniae, 37,4% (164/438). Em geral, o gene mcr-1 foi encontrado em 90% (340/378) dos isolados de E. coli, com maiores prevalências encontradas em isola- dos de regiões litorâneas (96,5%, 191/198), humanos (95,6%, 111/116) e galinhas (91,8%, 123/134); para K. pneumoniae, o gene foi encontrado em 19,5% (32/164) dos isolados, com igual distribuição entre regiões e hospedeiros. Somente quatro isolados, dois de E. coli e dois de K. pneumoniae, demonstraram resistência fenotípica: o gene mcr-1 estava presente em ambas as cepas de E. coli, mas ausente nas de K. pneumoniae. Conclusões. Apesar da baixa prevalência de resistência fenotípica à colistina, a alta prevalência do gene mcr-1 em E. coli é preocupante. É preciso fiscalizar a proibição ao uso agropecuário de colistina no Equador e implementar o monitoramento contínuo da situação.

High levels of antimicrobial resistance in Escherichia coli and Salmonella from poultry in Ecuador

[ABSTRACT]. Amancha G, Celis Y, Irazabal J, Falconi M, Villacis K, Thekkur P, et al. High levels of antimicrobial resistance in Escherichia coli and Salmonella from poultry in Ecuador. Rev Panam Salud Publica. 2023;47:e15. https://doi.org/10.26633/RPSP.2023.15 Objective. To describe antimicrobial resistance profiles of Escherichia coli and Salmonella spp. isolated from chicken carcasses and the antimicrobials commonly used in animals in Ecuador and provide information on antimicrobial resistance patterns for implementing evidence-based corrective measures. Methods. Meat samples were collected from chicken carcasses in 199 slaughterhouses across Ecuador as part of a national pilot study for monitoring antimicrobial resistance in agricultural sources in 2019. Samples were tested for E. coli and Salmonella spp. Sensitivity to 10 critically important and three highly important antimicrobials (from a human health perspective) was assessed. The country report submitted to the World Organization for Animal Health was accessed to extract the quantity of antimicrobials produced or imported for use in animals. Results. Of 383 samples, E. coli was isolated from 148 (39%) and Salmonella spp. from 20 (5%) samples. Ninety percent of the isolates were resistant to at least one critically important antimicrobial. Resistance was highest to erythromycin (E. coli 76%; Salmonella spp. 85%) and tetracycline (E. coli 71%; Salmonella spp. 90%). Critically or highly important antimicrobials (colistin, tetracycline, trimethoprim/sulfamethoxazole) formed the bulk (87%) of antimicrobials used in animals as per the World Organization for Animal Health report. Conclusions. High prevalence of antimicrobial resistance in poultry in Ecuador calls for the development of guidelines and regulations on the use of antimicrobials and for engagement with livestock producers. The existing surveillance system needs to be strengthened to improve the monitoring of antimicrobial use and evolving resistance patterns.

[RESUMEN]. Objetivo. Describir los perfiles de resistencia antimicrobiana de las bacterias Escherichia coli y Salmonella spp. aisladas en carne de pollo y los antimicrobianos comúnmente empleados en animales en Ecuador, así como proporcionar información sobre los patrones de resistencia a los antimicrobianos para poner en marcha medidas correctivas basadas en la evidencia. Métodos. Se recogieron muestras de carne de pollo en 199 mataderos de todo Ecuador en el marco de un estudio piloto nacional para monitorear la resistencia a los antimicrobianos en fuentes agrícolas en el 2019. Se analizaron las muestras en busca de E. coli y Salmonella spp. Se evaluó la sensibilidad a diez antimicro- bianos de importancia crítica y tres muy importantes (para la salud humana). Se accedió al informe de país presentado ante la Organización Mundial de Sanidad Animal para obtener la cantidad de antimicrobianos producidos o importados para su uso en animales. Resultados. De 383 muestras, se aisló E. coli en 148 (39%) y Salmonella spp. en 20 (5%). En total, 90% de las cepas aisladas fueron resistentes a al menos un antimicrobiano de importancia crítica. Hubo una mayor resistencia a la eritromicina (E. coli: 76%; Salmonella spp.: 85%) y a la tetraciclina (E. coli: 71%; Salmonella spp.: 90%). Los antimicrobianos de importancia crítica o muy importantes (colistina, tetraciclina, trimetoprima/ sulfametoxazol) constituyeron la mayor parte (87%) de los antimicrobianos empleados en animales según el informe de la Organización Mundial de Sanidad Animal. Conclusiones. Debido a la alta prevalencia de la resistencia a los antimicrobianos en las aves de corral en Ecuador, son imprescindibles la elaboración de directrices y regulaciones sobre el uso de antimicrobianos y el compromiso con los productores pecuarios. Es necesario fortalecer el sistema de vigilancia existente para mejorar el seguimiento del uso de antimicrobianos y de la evolución de los patrones de resistencia.

[RESUMO]. Objetivo. Descrever perfis de resistência aos antimicrobianos em Escherichia coli e Salmonella spp. isoladas de carcaças de frango e os antimicrobianos comumente usados em animais no Equador e fornecer infor- mações sobre padrões de resistência aos antimicrobianos para implementar medidas corretivas baseadas em evidências. Métodos. Foram coletadas amostras de carne de carcaças de frango em 199 abatedouros em todo o Equa- dor como parte de um estudo piloto nacional para monitorar a resistência aos antimicrobianos de origem agrícola em 2019. Foram testadas amostras de E. coli e Salmonella spp. Foi avaliada a sensibilidade a 10 agentes antimicrobianos de importância crítica e três agentes antimicrobianos muito importantes (do ponto de vista da saúde humana). O relatório do país apresentado à Organização Mundial de Saúde Animal foi acessado para extrair a quantidade de antimicrobianos produzidos ou importados para uso em animais. Resultados. De 383 amostras, E. coli foi isolada em 148 (39%) e Salmonella spp. em 20 (5%). Noventa por cento dos isolados foram resistentes a pelo menos um antimicrobiano de importância crítica. A resistência foi maior à eritromicina (E. coli, 76%; Salmonella spp., 85%) e à tetraciclina (E. coli, 71%; Salmonella spp., 90%). Antimicrobianos de importância crítica ou muito importantes (colistina, tetraciclina, trimetoprim/sulfametox- azol) responderam pela maior parte (87%) dos antimicrobianos utilizados em animais, conforme o relatório da Organização Mundial de Saúde Animal. Conclusões. A alta prevalência de resistência aos antimicrobianos na avicultura no Equador exige o desen- volvimento de diretrizes e regulamentos sobre o uso de antimicrobianos e o envolvimento com os produtores de gado e avícolas. O sistema de vigilância existente precisa ser reforçado para melhorar o monitoramento do uso de antimicrobianos e a evolução dos padrões de resistência.

Operational research on tuberculosis screening feasibility and outcomes in patients requiring hospitalization for COVID-19 in Belarus: project report

To address a decrease in notifications for tuberculosis (TB), Belarus introduced Xpert MTB/RIF testing, which is a rapid diagnosis test for TB and for rifampicin sensitivity, in patients with COVID-19 admitted to repurposed departments at TB hospitals. The WHO Regional Office for Europe together with the National Tuberculosis Programme performed a mixed-methods operational research study evaluating outcomes and feasibility of this intervention, particularly the proportions of those testing positive for Mycobacterium tuberculosis and for rifampicin resistance and the COVID-19-related mortality in patients with TB. The study demonstrated the feasibility of laboratory TB testing among patients with COVID-19 at these repurposed departments of tuberculosis hospitals considering the available human, material and financial resources. The intervention may help to improve TB case-finding during the COVID-19 pandemic and can be recommended for routine practice in Belarus and in similar settings with high TB burden.

Региональное операционное исследование по внедрению безынъекционных модифицированных краткосрочных режимов лечения туберкулеза с множественной лекарственной устойчивостью / лекарственной устойчивостью к рифампицину: оценка проведения первой половины исследования.

Для того чтобы проанализировать выводы, сделанные в ходе реализации регионального операционного исследования (ОИ) по внедрению безынъекционных модифицированных краткосрочных режимов лечения (мКРЛ) туберкулеза (ТБ) с множественной лекарственной устойчивостью / лекарственной устойчивостью к рифампицину (МЛУ/РУ-ТБ), и оценить влияние инициативы на программную практику в странах-участницах, Европейское региональное бюро Всемирной организации здравоохранения (ВОЗ) инициировало проведение промежуточной оценки ОИ по внедрению мКРЛ, основными целями которой являются описание препятствий и благоприятных факторов, сопутствующих реализации ОИ на региональном, страновом и районном уровнях; оценка влияния инициативы на программную практику в странах-участницах; представление рекомендаций для дальнейшего осуществления ОИ по внедрению мКРЛ и других исследовательских и программных инициатив, связанных с лечением МЛУ/РУ-ТБ.

Regional operational research on the introduction of fully oral modified shorter treatment regimens for multidrug/rifampicin-resistant tuberculosis: mid-project evaluation.

The WHO Regional Office for Europe initiated a mid-project evaluation of the regional operational research (OR) on the implementation of fully oral modified shorter treatment regimens (mSTR) for multidrug-resistant/rifampicin-resistant tuberculosis (MDR/RR-TB). The evaluation aimed to analyse the findings of the OR implementation process and assess the impact of the initiative on programmatic practices in participating countries.The main objectives of the evaluation were to describe the OR barriers and enablers at regional, country and district levels, assess the impact of the initiative on programmatic practices in participating countries, and provide recommendations for further implementation of the OR on the introduction of mSTR and other research and programmatic initiatives related to MDR/RR-TB treatment.

Newly implemented community CD4 service in Tshwaragano, Northern Cape province, South Africa, positively impacts result turn-around time

Background: The Northern Cape is South Africa's largest province with an HIV prevalence of 7.1% versus a 13.5% national prevalence. CD4 testing is provided at three of five National Health Laboratory Service district laboratories, each covering a 250 km precinct radius. Districts without a local service report prolonged CD4 turn-around times (TAT).Objective: This study documented the impact of a new CD4 laboratory in Tshwaragano in the remote John Taolo Gaetsewe district of the Northern Cape, South Africa.Methods: CD4 test volumes and TAT (total, pre-analytical, analytical, and post-analytical) data for the Northern Cape province were extracted for June 2018 to October 2019. The percentage of CD4 results within the stipulated 40-h TAT cut-off and the median and 75th percentiles of all TAT parameters were calculated. Pre-implementation, samples collected at Tshwaragano were referred to Kimberley or Upington, Northern Cape, South Africa.Results: Pre-implementation, 95.4% of samples at Tshwaragano were referred to Kimberley for CD4 testing (36.3% of Kimberley's test volumes). Only 7.5% of Tshwaragano's total samples were referred post-implementation. The Tshwaragano laboratory's CD4 median total TAT decreased from 24.7 h pre-implementation to 12 h post-implementation (p = 0.003), with >95.0% of results reported within 40 h. The Kimberley laboratory workload decreased by 29.0%, and testing time significantly decreased from 10 h to 4.3 h.Conclusion: The new Tshwaragano CD4 service significantly decreased local TAT. Upgrading existing community laboratories to include CD4 testing can alleviate provincial service load and improve local access, TAT and efficiency in the centralised reference laboratory

Trabajo comunitario integrado de estudiantes de Ciencias Médicas frente a la COVID-19, Policlínico Rampa, 2020 / Integrated Community Work of Medical Sciences Students Facing COVID-19, Rampa Community Clinic, 2020

Introducción: En Cuba se realizan colosales esfuerzos para la prevención y control de la COVID-19, como es el pesquisaje activo realizado por estudiantes de Ciencias Médicas, a modo de trabajo comunitario integrado a la propia comunidad. Objetivo: Caracterizar el trabajo comunitario integrado desarrollado por estudiantes de Ciencias Médicas en el enfrentamiento a la COVID-19 en el área de salud del Policlínico Rampa. Métodos: Se realizó un estudio observacional de tipo descriptivo, retrospectivo, longitudinal, para analizar los datos provenientes del trabajo comunitario integrado. La pesquisa tuvo una primera etapa, entre marzo-julio 2020, al inicio de la pandemia en el país, y una segunda en septiembre-octubre 2020, dada la contingencia sanitaria existente en la capital. Se analizaron esencialmente las viviendas visitadas y las cerradas, personas pesquisadas, cantidad de adultos mayores, así como los sospechosos de contagio diarios. La evaluación del trabajo comunitario integrado se basó en la asistencia y la calidad de la pesquisa. Resultados: Se pesquisó como promedio por día el 21 por ciento del universo poblacional en la primera etapa y el 35 por ciento en la segunda etapa. El número de sospechosos detectados fue bajo. El número de viviendas visitadas y de adultos mayores pesquisados fue también superior durante la segunda etapa. Aunque el trabajo comunitario integrado fue más productivo y mejor evaluado en esa etapa, se consideró meritoria la pesquisa activa desarrollada por los estudiantes en ambos periodos. Conclusiones: El trabajo comunitario integrado realizado por estudiantes de las Ciencias Médicas, además de ser parte de su formación integral, representa un aporte necesario para enfrentar la COVID-19, de gran relevancia en un área con elevada prevalencia de adultos mayores(AU)

Introduction: In Cuba, boundless efforts are being made for the prevention and control of COVID-19, such as the active screening carried out by students of Medical Sciences, as a community work integrated into the community itself. Objective: To describe the integrated community work fulfilled by students of Medical Sciences in the confrontation with COVID-19 in the health area of Rampa community clinic. Methods: An observational, descriptive, retrospective, longitudinal study was carried out to analyze the data from integrated community work. The investigation had a first stage, from March to July 2020, at the beginning of the pandemic in the country, and a second stage from September to October 2020, given the existing health contingency in the capital city. Essentially, the homes visited and closed were analyzed, as well as the people surveyed, the number of older adults, and the daily contagion suspects. The evaluation of integrated community work was based on the assistance and the quality of the research. Results: An average of 21percent of the population universe was surveyed per day in the first stage and 35percent in the second stage. The number of suspects detected was low. The number of homes visited and aged adults surveyed was also higher during the second stage. Although integrated community work was more productive and better evaluated in this stage, the active research carried out by the students in both periods was considered meritorious. Conclusions: The integrated community work carried out by students of Medical Sciences, in addition to being part of their comprehensive training, represents a necessary contribution to face COVID-19, of great relevance in an area with a high prevalence of aged adults(AU)