Multidrug-resistant Salmonella spp. in fecal samples of pigs with suspected salmonellosis in Antioquia, Colombia, 2019–2021

[ABSTRACT]. Objectives. To determine the proportion of Salmonella enterica in fecal samples of live pigs with suspected salmonellosis analyzed at the diagnostic unit of the University of Antioquia, Colombia between 2019 and 2021, and examine the serotypes and antimicrobial resistance patterns. Methods. This was a laboratory-based cross-sectional study of routine data on fecal samples received from pig farms in all nine subregions of Antioquia state, Colombia. Salmonella spp. detection at the university is done using enrichment, selective culture, and polymerase chain reaction. Serotypes were identified using the Kauffmann–White scheme and isolates were tested for antimicrobial susceptibility using broth microdilution. Results. Of 653 samples tested, 149 (23%) were positive for S. enterica. Nine serotypes were identified. The most common were Salmonella Typhimurium (56%) and its monophasic variant (35%). Resistance to ampicillin (70%) was most frequently observed, followed by ciprofloxacin (55%), and sulfamethoxazole–trimethoprim (52%). No isolates were resistant to amikacin and gentamicin. Multidrug resistance (resistance to ≥ 3 classes of antibiotics) was observed in 61 (44%) isolates. Multidrug resistance was highest in S. Typhimurium (57%) compared with the other serotypes. Serotype was associated with multidrug resistance (p = 0.01), but age of the pig and sub-region were not. Conclusions. The proportion of Salmonella spp. and the associated high levels of multidrug resistance are of concern and may indicate irrational use of antimicrobials and poor management practices in pig production systems in the region. Strengthened surveillance is needed to monitor and improve farm management prac- tices and the use of antimicrobials in farms in Colombia.

[RESUMEN]. Objetivos. Determinar la proporción de Salmonella enterica en muestras fecales de cerdos vivos con pre- sunta salmonelosis analizadas en la unidad de diagnóstico de la Universidad de Antioquia (Colombia) entre el 2019 y el 2021, así como examinar los serotipos y los patrones de resistencia a los antimicrobianos. Métodos. Se trata de un estudio transversal de laboratorio sobre datos ordinarios de muestras fecales pro- venientes de granjas porcinas de las nueve subregiones del departamento de Antioquia (Colombia). La detección de Salmonella spp. en la universidad se realiza mediante el enriquecimiento, el cultivo selectivo y la reacción en cadena de la polimerasa. Se identificaron los serotipos con el esquema de Kauffmann-White y se examinaron las cepas aisladas para determinar la susceptibilidad antimicrobiana mediante microdilución en caldo. Resultados. De las 653 muestras analizadas, 149 (23%) dieron un resultado positivo para S. enterica. Se iden- tificaron nueve serotipos. Los más comunes fueron Salmonella typhimurium (56%) y su variante monofásica (35%). La resistencia a la ampicilina fue la observada con mayor frecuencia (70%), seguida de la resisten- cia al ciprofloxacino (55%) y al sulfametoxazol-trimetoprima (52%). Ninguna cepa aislada fue resistente a la amikacina y la gentamicina. Se observó resistencia a múltiples fármacos (resistencia a tres o más clases de antibióticos) en 61 cepas (44%). La resistencia a múltiples fármacos fue más elevada en el caso de S. typh- imurium (57%) en comparación con los otros serotipos. Se asoció el serotipo con la resistencia a múltiples fármacos (p = 0,01), a diferencia de la edad del cerdo y la subregión. Conclusiones. La proporción de Salmonella spp. y los elevados niveles asociados de resistencia a múltiples fármacos son preocupantes y pueden ser un indicativo de uso irracional de antimicrobianos y malas prácticas de gestión en los sistemas de producción porcina de la región. Es necesario reforzar la vigilancia para dar seguimiento y mejorar las prácticas de gestión agropecuaria y el uso de antimicrobianos en las granjas en Colombia.

[RESUMO]. Objetivos. Determinar a proporção de Salmonella enterica em amostras de fezes de suínos vivos com sus- peita de salmonelose analisadas na unidade de diagnóstico da Universidade de Antioquia, Colômbia, entre 2019 e 2021, e examinar seus sorotipos e padrões de resistência a antimicrobianos. Métodos. Estudo transversal, de base laboratorial, utilizando dados de rotina de amostras de fezes recebidas de suinocultores em todas as nove sub-regiões do estado de Antioquia, Colômbia. A detecção de Salmonella spp. na Universidade é feita por enriquecimento, cultura seletiva e reação em cadeia da polimerase. Os sorotipos foram identificados usando o esquema de Kauffmann-White, e os isolados foram testados quanto à suscetibilidade aos antimicrobianos pelo método de microdiluição em caldo. Resultados. Das 653 amostras testadas, 149 (23%) foram positivas para S. enterica. Foram identificados nove sorotipos. Os mais comuns foram Salmonella Typhimurium (56%) e sua variante monofásica (35%). A resistência à ampicilina (70%) foi observada com maior frequência, seguida pela resistência ao ciprofloxa- cino (55%) e ao sulfametoxazol/trimetoprima (52%). Nenhum isolado apresentou resistência à amicacina ou gentamicina. Multirresistência (resistência a ≥ 3 classes de antibióticos) foi observada em 61 isolados (44%). A multirresistência foi mais comum em S. Typhimurium (57%), em comparação aos outros sorotipos. Foi con- statada associação da multirresistência com sorotipos (p = 0,01), mas não com idade do suíno ou sub-região. Conclusões. A proporção de Salmonella spp. e os níveis elevados associados de multirresistência a antimi- crobianos aqui constatados são preocupantes, e podem indicar uso irracional de antimicrobianos e práticas inadequadas de manejo nos sistemas de suinocultura da região. É preciso fortalecer a vigilância para moni- torar e melhorar as práticas de manejo agrícola e o uso de antimicrobianos em fazendas na Colômbia.

Multidrug-resistant Salmonella spp. in fecal samples of pigs with suspected salmonellosis in Antioquia, Colombia, 2019-2021 / Salmonella spp. multirresistentes en muestras fecales de cerdos con presunta salmonelosis en Antioquia, Colombia, 2019-2021 / Salmonella spp. multirresistente em amostras fecais de suínos com suspeita de salmonelose em Antioquia, Colômbia, 2019-2021

ABSTRACT Objectives. To determine the proportion of Salmonella enterica in fecal samples of live pigs with suspected salmonellosis analyzed at the diagnostic unit of the University of Antioquia, Colombia between 2019 and 2021, and examine the serotypes and antimicrobial resistance patterns. Methods. This was a laboratory-based cross-sectional study of routine data on fecal samples received from pig farms in all nine subregions of Antioquia state, Colombia. Salmonella spp. detection at the university is done using enrichment, selective culture, and polymerase chain reaction. Serotypes were identified using the Kauffmann-White scheme and isolates were tested for antimicrobial susceptibility using broth microdilution. Results. Of 653 samples tested, 149 (23%) were positive for S. enterica. Nine serotypes were identified. The most common were Salmonella Typhimurium (56%) and its monophasic variant (35%). Resistance to ampicillin (70%) was most frequently observed, followed by ciprofloxacin (55%), and sulfamethoxazole-trimethoprim (52%). No isolates were resistant to amikacin and gentamicin. Multidrug resistance (resistance to ≥ 3 classes of antibiotics) was observed in 61 (44%) isolates. Multidrug resistance was highest in S. Typhimurium (57%) compared with the other serotypes. Serotype was associated with multidrug resistance (p = 0.01), but age of the pig and sub-region were not. Conclusions. The proportion of Salmonella spp. and the associated high levels of multidrug resistance are of concern and may indicate irrational use of antimicrobials and poor management practices in pig production systems in the region. Strengthened surveillance is needed to monitor and improve farm management practices and the use of antimicrobials in farms in Colombia.

RESUMEN Objetivos. Determinar la proporción de Salmonella enterica en muestras fecales de cerdos vivos con presunta salmonelosis analizadas en la unidad de diagnóstico de la Universidad de Antioquia (Colombia) entre el 2019 y el 2021, así como examinar los serotipos y los patrones de resistencia a los antimicrobianos. Métodos. Se trata de un estudio transversal de laboratorio sobre datos ordinarios de muestras fecales provenientes de granjas porcinas de las nueve subregiones del departamento de Antioquia (Colombia). La detección de Salmonella spp. en la universidad se realiza mediante el enriquecimiento, el cultivo selectivo y la reacción en cadena de la polimerasa. Se identificaron los serotipos con el esquema de Kauffmann-White y se examinaron las cepas aisladas para determinar la susceptibilidad antimicrobiana mediante microdilución en caldo. Resultados. De las 653 muestras analizadas, 149 (23%) dieron un resultado positivo para S. enterica. Se identificaron nueve serotipos. Los más comunes fueron Salmonella typhimurium (56%) y su variante monofásica (35%). La resistencia a la ampicilina fue la observada con mayor frecuencia (70%), seguida de la resistencia al ciprofloxacino (55%) y al sulfametoxazol-trimetoprima (52%). Ninguna cepa aislada fue resistente a la amikacina y la gentamicina. Se observó resistencia a múltiples fármacos (resistencia a tres o más clases de antibióticos) en 61 cepas (44%). La resistencia a múltiples fármacos fue más elevada en el caso de S. typhimurium (57%) en comparación con los otros serotipos. Se asoció el serotipo con la resistencia a múltiples fármacos (p = 0,01), a diferencia de la edad del cerdo y la subregión. Conclusiones. La proporción de Salmonella spp. y los elevados niveles asociados de resistencia a múltiples fármacos son preocupantes y pueden ser un indicativo de uso irracional de antimicrobianos y malas prácticas de gestión en los sistemas de producción porcina de la región. Es necesario reforzar la vigilancia para dar seguimiento y mejorar las prácticas de gestión agropecuaria y el uso de antimicrobianos en las granjas en Colombia.

RESUMO Objetivos. Determinar a proporção de Salmonella enterica em amostras de fezes de suínos vivos com suspeita de salmonelose analisadas na unidade de diagnóstico da Universidade de Antioquia, Colômbia, entre 2019 e 2021, e examinar seus sorotipos e padrões de resistência a antimicrobianos. Métodos. Estudo transversal, de base laboratorial, utilizando dados de rotina de amostras de fezes recebidas de suinocultores em todas as nove sub-regiões do estado de Antioquia, Colômbia. A detecção de Salmonella spp. na Universidade é feita por enriquecimento, cultura seletiva e reação em cadeia da polimerase. Os sorotipos foram identificados usando o esquema de Kauffmann-White, e os isolados foram testados quanto à suscetibilidade aos antimicrobianos pelo método de microdiluição em caldo. Resultados. Das 653 amostras testadas, 149 (23%) foram positivas para S. enterica. Foram identificados nove sorotipos. Os mais comuns foram Salmonella Typhimurium (56%) e sua variante monofásica (35%). A resistência à ampicilina (70%) foi observada com maior frequência, seguida pela resistência ao ciprofloxacino (55%) e ao sulfametoxazol/trimetoprima (52%). Nenhum isolado apresentou resistência à amicacina ou gentamicina. Multirresistência (resistência a ≥ 3 classes de antibióticos) foi observada em 61 isolados (44%). A multirresistência foi mais comum em S. Typhimurium (57%), em comparação aos outros sorotipos. Foi constatada associação da multirresistência com sorotipos (p = 0,01), mas não com idade do suíno ou sub-região. Conclusões. A proporção de Salmonella spp. e os níveis elevados associados de multirresistência a antimicrobianos aqui constatados são preocupantes, e podem indicar uso irracional de antimicrobianos e práticas inadequadas de manejo nos sistemas de suinocultura da região. É preciso fortalecer a vigilância para monitorar e melhorar as práticas de manejo agrícola e o uso de antimicrobianos em fazendas na Colômbia.

Gaps in the Care Cascade among Human Immunodeficiency Virus-Exposed Infants Born in 2017 in Mashonaland East Province of Zimbabwe.

INTRODUCTION: Prevention of mother-to-child transmission (PMTCT) is a key strategy for ending the human immunodeficiency virus (HIV) pandemic. Most studies have focused on the mothers' side of the PMTCT cascade or the rate of vertical HIV transmission. Information on child-focused cascade is limited. We aimed to evaluate HIV testing, antiretroviral therapy (ART), and cotrimoxazole prophylaxis uptake and associated factors among HIV-exposed infants (HEIs) born in 2017. METHODS: This was a record-based descriptive study in Mashonaland East Province, Zimbabwe. We analyzed routinely collected program data abstracted from electronic and paper-based HEI registers. Uptakes were calculated as proportions while associations were measured using adjusted risk ratios (log-binomial regression). RESULTS: Of 1028 HEIs, 1015 (98.7%) were commenced on nevirapine prophylaxis, while 915 (89.0%) were commenced on cotrimoxazole prophylaxis. A total of 880 (85.0%) HEIs were tested for HIV by 6 weeks and 445 (44.4%) by 9 months. Overall, 40 (3.9%) were found to be HIV positive, and of them, 34 (85.0%) commenced on ART. Secondary and tertiary health facilities, being born through nonvaginal delivery, and certain districts were significantly associated with not commencing cotrimoxazole prophylaxis or getting tested for HIV. One district was associated with less risk of not having an HIV test by 9 months. CONCLUSIONS: While nevirapine, cotrimoxazole, and ART uptake were high among the HEIs, HIV testing by 9 months was suboptimal. The vertical HIV transmission rate was 3.9%. There is a need to strengthen HIV testing and antiretroviral and cotrimoxazole prophylaxes, especially at high-level facilities and certain districts.

What is operational research and how can national tuberculosis programmes in low- and middle-income countries use it to end TB?

Despite considerable progress over the years, tuberculosis (TB) still remains the top cause of death among the infectious diseases and has devastating socio-economic consequences for people in low- and middle-income countries. To add to this, the emergence of the COVID-19 pandemic has worsened delivery of TB care across the globe. As a global community, we have committed to end the TB epidemic by 2030. The World Health Organization has framed a strategy to achieve this goal which consists of three pillars namely i) integrated patient-centred care and prevention, ii) bold policies and systems and iii) intensified research and innovation. An analysis of the performance of national tuberculosis programmes (NTPs) across the globe against the ten priority indicators recommended for monitoring the end TB strategy show that there are huge gaps at every step in the cascade of care of TB patients. In our view, these gaps reflect suboptimal implementation of existing strategies known to be efficacious and operational research (OR) is one of the best available tools to plug the gaps. In this paper, we define what operational research is and how it differs from other kinds of research. We also share our views and experiences about how operational research can be used by NTPs to identify implementation gaps and their reasons, and develop and test possible solutions - which are then integrated to make changes to policy and practice and eventually improve programme outcomes. OR can be defined as research into interventions, strategies and tools which produces practical useable knowledge that can be used to enhance the quality, coverage, effectiveness and efficiency of disease control programmes, health services or health systems in which the research is conducted. The key steps in integrating operational research in the NTPs include: i) securing political commitment reflected by inclusion of OR in the national strategic plans of NTPs and earmarked funding, ii) having a critical mass of dedicated and trained human resources in OR within the NTP, iii) setting research priorities and steering the direction of research in the country, iv) using output-oriented models of capacity building such as the Structured Operational Research Training Initiative (SORT IT) model and building communities of practice, v) harnessing existing capacity in the country by forging partnerships with academia, vi) NTP-led nationwide, multicentre OR studies, vii) providing access to anonymized patient and programme surveillance data, vii) creating a forum for evidence dissemination and fostering policy change and ix) monitoring and accountability. In conclusion, ending the TB epidemic will not be possible without new tools (diagnostics, drugs, vaccines) and a multi-sectoral response involving stakeholders beyond the health ministry, including private providers, patients and communities. However, timely conduct of operational research to fine-tune programme implementation and ensuring proper deployment of new tools will be equally crucial to maximize the effectiveness and efficiency of interventions and ultimately contribute towards ending TB.

Quality, Equity and Utility of Observational Studies during 10 Years of Implementing the Structured Operational Research and Training Initiative in 72 Countries.

Introduction: Observational studies are often inadequately reported, making it difficult to assess their validity and generalizability and judge whether they can be included in systematic reviews. We assessed the publication characteristics and quality of reporting of observational studies generated by the Structured Operational Research and Training Initiative (SORT IT). Methods: A cross-sectional analysis of original publications from SORT IT courses. SORT IT is a global partnership-based initiative aimed at building sustainable capacity for conducting operational research according to country priorities and using the generated evidence for informed decision-making to improve public health. Reporting quality was independently assessed using an adapted version of 'Strengthening the Reporting of Observational Studies in Epidemiology' (STROBE) checklist. Results: In 392 publications, involving 72 countries, 50 journals, 28 publishers and 24 disease domains, low- and middle-income countries (LMICs) first authorship was seen in 370 (94%) and LMIC last authorship in 214 (55%). Publications involved LMIC-LMIC collaboration in 90% and high-income-country-LMIC collaboration in 87%. The majority (89%) of publications were in immediate open access journals. A total of 346 (88.3%) publications achieved a STROBE reporting quality score of >85% (excellent), 41 (10.4%) achieved a score of 76-85% (good) and 5 (1.3%) a score of 65-75% (fair). Conclusion: The majority of publications from SORT IT adhere to STROBE guidelines, while also ensuring LMIC equity and collaborative partnerships. SORT IT is, thus, playing an important role in ensuring high-quality reporting of evidence for informed decision-making in public health.

HIV care among patients with presumptive tuberculosis in Masvingo district of Zimbabwe, 2017: how well are we doing?

INTRODUCTION: While HIV care among tuberculosis (TB) patients is successfully implemented and monitored, it is not routinely reported among "presumptive TB patients without TB". The present study describes the ascertainment of HIV status and receipt of antiretroviral therapy (ART) and the associated factors among presumptive TB patients (with and without TB) in 35 public health facilities of Masvingo district of Zimbabwe from January to June 2017. METHODS: This was an analysis of secondary programme data. We performed log binomial regression to calculate adjusted relative risks (aRR) and 95% confidence intervals (CI). RESULTS: Of 1369 presumptive TB patients, 1181 (86%) were ascertained for HIV status (98% among those subsequently diagnosed with TB, 83% among non-TB). Of them, 748 (63%) were HIV positive, more among TB patients (69%) than those without TB (61%). Among HIV-positive patients, 475 (64%) received ART, significantly higher among TB patients (78%) compared to those without TB (57%). Patients without TB were significantly more likely to have non-ascertained for HIV status (aRR=2.4, 95% CI=1.4-5.0) and not receiving ART (aRR=1.8, 95% CI=1.6-2.0), compared to those with TB. CONCLUSION: We found high rates of HIV status ascertainment among presumptive TB patients. But, ART uptake was poor among "presumptive TB patients without TB", despite implementation of "test and treat" strategy in Zimbabwe. The programme should step up the monitoring of HIV status and ART receipt among presumptive TB patients, by introducing an indicator in the quarterly reports of the national TB programme.

Are we missing 'previously treated' smear-positive pulmonary tuberculosis under programme settings in India? A cross-sectional study.

Background: In 2007, a field observation from India reported 11% misclassification among 'new' patients registered under the revised national tuberculosis (TB) control programme. Ten years down the line, it is important to know what proportion of newly registered patients has a past history of TB treatment for at least one month (henceforth called 'misclassification'). Methods: A study was conducted among new smear-positive pulmonary TB patients registered between March 2016 and February 2017 in 18 randomly selected districts to determine the effectiveness of an active case-finding strategy in marginalised and vulnerable populations. We included all patients detected through active case-finding. An equal number of randomly selected patients registered through passive case-finding from marginalised and vulnerable populations in the same districts were included. Before enrolment, we enquired about any history of previous TB treatment through interviews. Results: Of 629 patients, we interviewed 521, of whom, 11% (n=56) had past history of TB treatment (public or private) for at least a month: 13% (34/268) among the active case-finding group and 9% (22/253) among the passive case-finding group (p=0.18). No factors were found to be significantly associated with misclassification. Conclusion: Around one in every ten patients registered as 'new' had previous history of TB treatment. Corrective measures need to be implemented, followed by monitoring of any change in the proportion of 'previously treated' patients among all registered patients treated under the programme at national level.

Tuberculosis screening among pregnant women attending a tertiary care hospital in Puducherry, South India: is it worth the effort?

BACKGROUND: The national tuberculosis (TB) programme in India recommends screening all pregnant women for TB, but this is rarely implemented. We carried out systematic TB screening among women attending the antenatal clinic of a tertiary care hospital in Puducherry, South India, during February to April 2018. OBJECTIVE: To assess the number screened and number (proportion) with presumptive and active TB, and understand potential implementation from the healthcare providers' perspective. METHODS: We conducted a mixed-methods study. The quantitative phase was a cross-sectional study including 4203 pregnant women. Data were captured using a structured proforma. Any of the following symptoms constituted 'presumptive TB': any cough, haemoptysis, fever, weight loss, night sweats, neck swellings, joint pains, neck stiffness and disorientation. Those screening positive were referred for investigations and evaluation by a chest physician. The qualitative phase involved seven one-to-one interviews with healthcare providers. Manual thematic analysis was performed to generate themes. RESULTS: Among 4203 women (two HIV-positive) screened, 77 (1.8%) had presumptive TB. Cough was the predominant symptom (n = 75). Only 12 women could produce a sputum sample, of whom one (0.02%) was diagnosed with active TB by the Xpert MTB/RIF assay. Challenges cited by healthcare providers were lack of awareness among clients and providers, high case load, lack of dedicated staff, perception that TB screening is a low-yield, low-priority activity and losses in the referral process. Suggested solutions were providing dedicated staff and space for screening, educating women to self-report using posters and videos, and creating a one-stop care provision. CONCLUSIONS: The TB yield among pregnant women was very low, calling into question the value of systematic screening in a low-HIV setting. However, the findings may not be generalizable. Evidence is urgently needed from primary and secondary care facilities. The challenges and solutions identified may help in optimizing the screening process.

Does the Structured Operational Research and Training Initiative (SORT IT) continue to influence health policy and/or practice?

BACKGROUND: The Structured Operational Research and Training Initiative (SORT IT) is a successful model of integrated operational research and capacity building with about 90% of participants completing the training and publishing in scientific journals. OBJECTIVE: The study aims at assessing the influence of research papers from six SORT IT courses conducted between April 2014 and January 2015 on policy and/or practice. METHODS: This was a cross-sectional mixed-method study involving e-mail based, self-administered questionnaires sent to course participants coupled with telephone/Skype/in-person responses from participants, senior facilitators and local co-authors of course papers. A descriptive content analysis was performed to generate themes. RESULTS: Of 71 participants, 67 (94%) completed the course. A total of 67 papers (original research) were submitted for publication, of which 61 (91%) were published or were in press at the censor date (31 December 2016). Among the 67 eligible participants, 65 (97%) responded to the questionnaire. Of the latter, 43 (66%) research papers were self-reported to have contributed to a change in policy and/or practice by the course participants: 38 to a change in government policy or practice (26 at the national level, six at the subnational level and six at the local/hospital level); four to a change in organisational policy or practice; and one study fostered global policy development. CONCLUSION: Nearly two-thirds of SORT IT course papers contributed to a change in policy and/or practice as reported by the participants. Identifying the actual linkage of research to policy/practice change requires more robust methodology, in-depth assessment and independent validation of the reported change with all concerned stakeholders.

High pre-diagnosis attrition among patients with presumptive MDR-TB: an operational research from Bhopal district, India.

BACKGROUND: Pre-diagnosis attrition needs to be addressed urgently if we are to make progress in improving MDR-TB case detection and achieve universal access to MDR-TB care. We report the pre-diagnosis attrition, along with factors associated, and turnaround times related to the diagnostic pathway among patient with presumptive MDR-TB in Bhopal district, central India (2014). METHODS: Study was conducted under the Revised National Tuberculosis Control Programme setting. It was a retrospective cohort study involving record review of all registered TB cases in Bhopal district that met the presumptive MDR-TB criteria (eligible for DST) in 2014. In quarter 1, Line Probe Assay (LPA) was used if sample was smear/culture positive. Quarter 2 onwards, LPA and Cartridge-based Nucleic Acid Amplification Test (CbNAAT) was used for smear positive and smear negative samples respectively. Pre-diagnosis attrition was defined as failure to undergo DST among patients with presumptive MDR-TB (as defined by the programme). RESULTS: Of 770 patients eligible for DST, 311 underwent DST and 20 patients were diagnosed as having MDR-TB. Pre-diagnosis attrition was 60% (459/770). Among those with pre-diagnosis attrition, 91% (417/459) were not identified as 'presumptive MDR-TB' by the programme. TAT [median (IQR)] to undergo DST after eligibility was 4 (0, 10) days. Attrition was more than 40% across all subgroups. Age more than 64 years; those from a medical college; those eligible in quarter 1; patients with presumptive criteria 'previously treated - recurrent TB', 'treatment after loss-to-follow-up' and 'previously treated-others'; and patients with extra-pulmonary TB were independent risk factors for not undergoing DST. CONCLUSION: High pre-diagnosis attrition was contributed by failure to identify and refer patients. Attrition reduced modestly with time and one factor that might have contributed to this was introduction of CbNAAT in quarter 2 of 2014. General health system strengthening which includes improvement in identification/referral and patient tracking with focus on those with higher risk for not undergoing DST is urgently required.

Isoniazid Preventive Therapy among Children Living with Tuberculosis Patients: Is It Working? A Mixed-Method Study from Bhopal, India.

Objective: We assessed uptake of isoniazid preventive therapy (IPT) among child contacts of smear-positive tuberculosis (TB) patients and its implementation challenges from healthcare providers' and parents' perspectives in Bhopal, India. Methods: A mixed-method study design: quantitative phase (review of programme records and house-to-house survey of smear-positive TB patients) followed by qualitative phase (interviews of healthcare providers and parents). Results: Of 59 child contacts (<6 years) of 129 index patients, 51 were contacted. Among them, 19 of 51 (37%) were screened for TB and one had TB. Only 11 of 50 (22%) children were started and 10 of 50 (20%) completed IPT. Content analysis of interviews revealed lack of awareness, risk perception among parents, cumbersome screening process, isoniazid stock-outs, inadequate knowledge among healthcare providers and poor programmatic monitoring as main barriers to IPT implementation. Conclusion: National TB programme should counsel parents, train healthcare providers, simplify screening procedures, ensure regular drug supply and introduce an indicator to strengthen monitoring and uptake of IPT.

Alarming attrition rates among HIV-infected individuals in pre-antiretroviral therapy care in Myanmar, 2011-2014.

BACKGROUND: High retention rates have been documented among patients receiving antiretroviral therapy (ART) in Myanmar. However, there is no information on human immunodeficiency virus (HIV)-infected individuals in care before initiation of ART (pre-ART care). We assessed attrition (loss-to-follow-up [LTFU] and death) rates among HIV-infected individuals in pre-ART care and their associated factors over a 4-year period. DESIGN: In this retrospective cohort study, we extracted routinely collected data of HIV-infected adults (>15 years old) entering pre-ART care (June 2011-June 2014) as part of an Integrated HIV Care (IHC) programme, Myanmar. Attrition rates per 100 person-years and cumulative incidence of attrition were calculated. Factors associated with attrition were examined by calculating hazard ratios (HRs). RESULTS: Of 18,037 HIV-infected adults enrolled in the IHC programme, 11,464 (63%) entered pre-ART care (60% men, mean age 37 years, median cluster of differentiation 4 (CD4) cell count 160 cells/µL). Of the 11,464 eligible participants, 3,712 (32%) underwent attrition of which 43% were due to deaths and 57% were due to LTFU. The attrition rate was 78 per 100 person-years (95% CI, 75-80). The cumulative incidence of attrition was 70% at the end of a 4-year follow-up, of which nearly 90% occurred in the first 6 months. Male sex (HR 1.5, 95% CI 1.4-1.6), WHO clinical Stage 3 and 4, CD4 count <200 cells/µL, abnormal BMI, and anaemia were statistically significant predictors of attrition. CONCLUSIONS: Pre-ART care attrition among persons living with HIV in Myanmar was alarmingly high - with most attrition occurring within the first 6 months. Strategies aimed at improving early HIV diagnosis and initiation of ART are needed. Suggestions include comprehensive nutrition support and intensified monitoring to prevent pre-ART care attrition by tracking patients who do not return for pre-ART care appointments. It is high time that Myanmar moves towards a 'test and treat' approach and ultimately eliminates the need for pre-ART care.

HIV Testing among Patients with Presumptive Tuberculosis: How Do We Implement in a Routine Programmatic Setting? Results of a Large Operational Research from India.

BACKGROUND: In March 2012, World Health Organization recommended that HIV testing should be offered to all patients with presumptive TB (previously called TB suspects). How this is best implemented and monitored in routine health care settings in India was not known. An operational research was conducted in Karnataka State (South India, population 64 million, accounts for 10% of India's HIV burden), to test processes and learn results and challenges of screening presumptive TB patients for HIV within routine health care settings. METHODS: In this cross-sectional study conducted between January-March 2012, all presumptive TB patients attending public sector sputum microscopy centres state-wide were offered HIV testing by the laboratory technician, and referred to the nearest public sector HIV counselling and testing services, usually within the same facility. The HIV status of the patients was recorded in the routine TB laboratory form and TB laboratory register. The laboratory register was compiled to obtain the number of presumptive TB patients whose HIV status was ascertained, and the number found HIV positive. Aggregate data on reasons for non-testing were compiled at district level. RESULTS: Overall, 115,308 patients with presumptive TB were examined for sputum smear microscopy at 645 microscopy centres state-wide. Of these, HIV status was ascertained for 62,847(55%) among whom 7,559(12%) were HIV-positive, and of these, 3,034(40%) were newly diagnosed. Reasons for non-testing were reported for 37,700(72%) of the 52,461 patients without HIV testing; non-availability of testing services at site of sputum collection was cited by health staff in 54% of respondents. Only 4% of patients opted out of HIV testing. CONCLUSION: Offering HIV testing routinely to presumptive TB patients detected large numbers of previously-undetected instances of HIV infection. Several operational challenges were noted which provide useful lessons for improving uptake of HIV testing in this important group.

Who takes the medicine? Adherence to antiretroviral therapy in Southern Ethiopia.

BACKGROUND: Treatment adherence is critical for the success of antiretroviral therapy (ART) for people living with HIV. There is limited representative information on ART drug adherence and its associated factors from Southern Ethiopia. We aimed at estimating the level of adherence to ART among people living with HIV and factors associated with it in 20 randomly selected ART clinics of Southern Ethiopia. METHODS: In this cross-sectional study, we interviewed consecutive HIV patients on first-line antiretroviral regimen attending the clinics in June 2014 using a pretested and structured questionnaire. For measuring adherence, we used 4-day recall method based on "The AIDS Clinical Trial Group adherence assessment tool". Patients were classified as "Incomplete adherence" if they missed any of the doses in the last 4 days. Data were singly entered using EpiData and descriptive analysis, and unadjusted odds ratios were calculated using EpiDataStat software. Multivariate logistic regression analysis was performed using Stata v12.0. RESULTS: Of 974 patients interviewed, 539 (56%) were females, and mean age was 35 years. The proportion of patients with incomplete adherence was 13% (95% confidence interval: 11%-15%). In multivariate analysis, factors significantly associated with incomplete adherence included young age, being Protestant Christian, consuming alcohol, being single, and being a member of an HIV association. Psychosocial factors like stigma, depression, and satisfaction to care were not associated with incomplete adherence in the current context. CONCLUSION: The overall adherence to ART was good. However, there were certain subgroups with incomplete adherence who need special attention. The health care providers (especially counselors) need to be aware of these subgroups and tailor their counseling to improve adherence among these groups. Exploratory qualitative studies may help uncover the exact reasons for incomplete adherence.

Light Emitting Diode Fluorescence Microscopy increased the detection of smear-positives during follow-up of Tuberculosis patients in India: program implications.

BACKGROUND: In India, since July 2012, at designated Microscopy Centers (DMCs) in 200 medical colleges, sputum smear examination for tuberculosis bacilli changed from Ziehl Neelsen (ZN) method to auramine based Light Emitting Diode Fluorescent Microscopy (LED-FM) method. We assessed the additional yield of smear positives among patients undergoing follow-up sputum examination during TB treatment before and after deploying LED-FM. METHODS: This was a before and after comparison study in eight conveniently selected medical college DMCs across North India. We extracted data from TB laboratory registers on number of TB patients examined for follow-up and their smear microscopy results including the grades by ZN (before; July-December 2011) and LED-FM (after; July-December 2012) and compared them. RESULTS: Altogether, 2868 TB patients were examined by LED-FM and 2740 were examined by ZN during follow-up. LED-FM increased the proportion of follow-up smear positives from 5.0 % (n = 136) to 7.4 % (n = 213) with an additional yield of 77 follow-up smear-positives-with the highest increase in smears graded scanty (2.6 vs 1.2 %) (p value <0.05). CONCLUSIONS: Since all smear positives during follow-up are considered 'presumptive multidrug resistant (MDR)-TB patients' in India, introduction of LED-FM would result in additional number of patients eligible for MDR-TB testing, which would have otherwise been missed by ZN.

Sex Differences in Cardiovascular Risk Factors among People with Diabetes in South India.

OBJECTIVE: To assess the sex differences in the prevalence of cardiovascular risk factors among patients with type 2 diabetes, visiting the hospital between March-December 2012. METHODS: A cross-sectional study was performed among the type 2 diabetes patients attending M.V. Hospital for Diabetes, a tertiary centre specialized in diabetes care, Chennai, South India. We collected information on obesity (body mass index ≥25 kg/m2), hypertension, dyslipidemia, smoking, alcohol consumption and glycemic control (HbA1c >8% considered poor control). RESULTS: Risk factors (prevalence) among 6113 (58% males; mean age 54 years) patients were obesity (68.4%), poor glycemic control (51.4%), hypertension (37.9%), dyslipidemia (34.7%), smoking (9.6%) and consumption of alcohol (10.3%), respectively. Women had a higher prevalence of obesity (75.7 vs 63.2%) and poor glycemic control while men had a higher prevalence of smoking and alcohol consumption. There were no sex differences in prevalence of hypertension and dyslipidemia. Cardiovascular risk factors were not associated with duration of diabetes. CONCLUSIONS: Cardiovascular risk factors were highly prevalent among patients with type 2 diabetes attending a tertiary care centre in South India, with different risk profiles among men and women. We recommend a gender-sensitive approach in planning interventions (counseling and treatment) to reduce the risk of cardiovascular disease.

The journey to antiretroviral therapy in Karnataka, India: who was lost on the road?

INTRODUCTION: One important operational challenge facing antiretroviral treatment (ART) programmes in low- and middle-income countries is the loss to follow-up between diagnosis of human immunodeficiency virus (HIV) and initiation of ART. This is a major obstacle to achieving universal access to ART. This study from Karnataka, India, tried to measure such losses by determining the number of HIV-positive individuals diagnosed, the number of them reaching ART centres, the number initiated on ART and the reasons for non-initiation of ART. METHODS: A review of records routinely maintained under the National AIDS Control Programme (NACP) was carried out in six districts of Karnataka. HIV-positive persons diagnosed during the months from January to June 2011 in 233 public HIV-testing sites were followed up until December 2011 based on the pre-ART registers. A chi-square test was used to assess statistical significance. RESULTS: Of 2291 HIV-positive persons diagnosed (52% male; mean age of 35 years), 1829 (80%) reached ART centres. Of the latter, 1166 (64%) were eligible for ART, and 959 (82%) were initiated on treatment. Overall losses (attrition) on the road between HIV diagnosis and ART initiation were 669 (29%). Deaths, migration and not willing to go to the ART centres were cited as the main known reasons for not reaching ART centres. For ART-eligible individuals who did not initiate ART, the most common known reasons for non-initiation included dying before initiation of ART and not being willing to start ART. CONCLUSIONS: In a large state of India, eight in ten HIV-positive persons reached ART centres, and of those found ART eligible, 82% start treatment. Although this is an encouraging achievement, the programme needs to take further steps to improve the current performance by further reducing pre-ART attrition. We recommend online registering of diagnosed HIV-positive patients to track the patients more efficiently.