Central America and the Dominican Republic at Crossroads: The Importance of Regional Cooperation and Health Economic Research to Address Current Health Challenges.

OBJECTIVES: We discuss key health challenges currently faced by countries in the Central America and Dominican Republic region after the COVID-19 pandemic. We highlight the influence of socioeconomic determinants for the challenging public health dynamics observed and the crucial roles that regional cooperation and health economic research can have for tackling such challenges. METHODS: We present a descriptive overview of the current situation of public finances and its effect on government capacity to improve social expenditure. We also discuss the impact of the COVID-19 pandemic crisis on social dynamics and living conditions in the region. RESULTS: Our analysis suggests that the interplay between all these factors is likely to have important consequences for health systems and population health in the post-pandemic period. Previous examples of successful cross-country cooperation in the region indicate the great potential that these initiatives have for supporting health system resilience against current challenges. Technical cooperation must be informed by (currently unavailable) research evidence that can guide decision making, especially health economic research to support national health resource allocation policies. Areas identified as priorities for applied health economic research include both macro and microeconomic analyses. CONCLUSIONS: Central America and the Dominican Republic face significant health challenges post-pandemic. Our article emphasizes the great potential that regional technical cooperation, informed by further health economic research, has to improve public policies and health governance in the region.

Reaching "covidianidad": A qualitative study of the impact of the COVID-19 pandemic on the perceived mental health of health care workers in the Dominican Republic.

We aimed to explore how the COVID-19 pandemic affected the lives of healthcare workers (HCWs) in the Dominican Republic. We also aimed to identify the types of resources that HCWs felt were needed to support their mental health. We used purposive and convenience sampling in four health centers in the eastern Dominican Republic to recruit 28 HCWs (doctors, nurses, psychologists, and community health workers) between April 2021 and August 2021. Through semi-structured interviews, we elicited HCWs experiences during the pandemic and how they felt these experiences impacted their mental health. Interview transcripts were analyzed using an inductive/deductive thematic approach. Main stressors experienced during the pandemic by HCWs and their sequelae included anxiety due to misinformation and uncertainty, fear of the disease, the robustness of pandemic-related changes they faced in their work and daily life, and COVID-19's economic impact. HCWs reflected on protective factors that transformed their acute sense of crisis felt at the beginning of the pandemic into what HCWs referred to as "covidianidad [everyday COVID]", a situation that became manageable through mechanisms including social support, professional motivation, positive work environment and resilience. Lastly, HCWs identified stigmatization of and limited access to mental health services as challenges to supporting their mental health. While Dominican HCWs were vulnerable to the challenges posed by COVID-19 in sustaining their mental health, for many, the situation became manageable through the evolution of "covidianidad." Further research and interventions are needed to reduce stigmatization of mental health services and foment a positive environment for HCWs' mental health, to promote resiliency to future challenges.

Using Regional Sero-Epidemiology SARS-CoV-2 Anti-S Antibodies in the Dominican Republic to Inform Targeted Public Health Response.

Incidence of COVID-19 has been associated with sociodemographic factors. We investigated variations in SARS-CoV-2 seroprevalence at sub-national levels in the Dominican Republic and assessed potential factors influencing variation in regional-level seroprevalence. Data were collected in a three-stage cross-sectional national serosurvey from June to October 2021. Seroprevalence of antibodies against the SARS-CoV-2 spike protein (anti-S) was estimated and adjusted for selection probability, age, and sex. Multilevel logistic regression was used to estimate the effect of covariates on seropositivity for anti-S and correlates of 80% protection (PT80) against symptomatic infection for the ancestral and Delta strains. A total of 6683 participants from 134 clusters in all 10 regions were enrolled. Anti-S, PT80 for the ancestral and Delta strains odds ratio varied across regions, Enriquillo presented significant higher odds for all outcomes compared with Yuma. Compared to being unvaccinated, receiving ≥2 doses of COVID-19 vaccine was associated with a significantly higher odds of anti-S positivity (OR 85.94, [10.95-674.33]) and PT80 for the ancestral (OR 4.78, [2.15-10.62]) and Delta strains (OR 3.08, [1.57-9.65]) nationally and also for each region. Our results can help inform regional-level public health response, such as strategies to increase vaccination coverage in areas with low population immunity against currently circulating strains.

The effects of policy changes and human mobility on the COVID-19 epidemic in the Dominican Republic, 2020-2021.

Recent advances in technology can be leveraged to enhance public health research and practice. This study aimed to assess the effects of mobility and policy changes on COVID-19 case growth and the effects of policy changes on mobility using data from Google Mobility Reports, information on public health policy, and COVID-19 testing results. Multiple bivariate regression analyses were conducted to address the study objectives. Policies designed to limit mobility led to decreases in mobility in public areas. These policies also decreased COVID-19 case growth. Conversely, policies that did not restrict mobility led to increases in mobility in public areas and led to increases in COVID-19 case growth. Mobility increases in public areas corresponded to increases in COVID-19 case growth, while concentration of mobility in residential areas corresponded to decreases in COVID-19 case growth. Overall, restrictive policies were effective in decreasing COVID-19 incidence in the Dominican Republic, while permissive policies led to increases in COVID-19 incidence.

Genomic Surveillance of SARS-CoV-2 Variants in the Dominican Republic and Emergence of a Local Lineage.

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is an RNA virus that evolves over time, leading to new variants. In the current study, we assessed the genomic epidemiology of SARS-CoV-2 in the Dominican Republic. A total of 1149 SARS-CoV-2 complete genome nucleotide sequences from samples collected between March 2020 and mid-February 2022 in the Dominican Republic were obtained from the Global Initiative on Sharing All Influenza Data (GISAID) database. Phylogenetic relationships and evolution rates were analyzed using the maximum likelihood method and the Bayesian Markov chain Monte Carlo (MCMC) approach. The genotyping details (lineages) were obtained using the Pangolin web application. In addition, the web tools Coronapp, and Genome Detective Viral Tools, among others, were used to monitor epidemiological characteristics. Our results show that the most frequent non-synonymous mutation over the study period was D614G. Of the 1149 samples, 870 (75.74%) were classified into 8 relevant variants according to Pangolin/Scorpio. The first Variants Being Monitored (VBM) were detected in December 2020. Meanwhile, in 2021, the variants of concern Delta and Omicron were identified. The mean mutation rate was estimated to be 1.5523 × 10-3 (95% HPD: 1.2358 × 10-3, 1.8635 × 10-3) nucleotide substitutions per site. We also report the emergence of an autochthonous SARS-CoV-2 lineage, B.1.575.2, that circulated from October 2021 to January 2022, in co-circulation with the variants of concern Delta and Omicron. The impact of B.1.575.2 in the Dominican Republic was minimal, but it then expanded rapidly in Spain. A better understanding of viral evolution and genomic surveillance data will help to inform strategies to mitigate the impact on public health.

Epidemiología de las infecciones espiratorias agudas antes y en pandemia de Coronavirus en República Dominicana / Epidemiology of Acute Respiratory Infections before and during the Coronavirus pandemic in the Dominican Republic

Resumen Objetivo: El síndrome respiratorio severo por coronavirus del Síndrome Respiratorio Agudo Severo tipo 2 es el microorganismo responsable de causar el COVID-19, una patología con afectación predominantemente respiratoria que posee un comportamiento similar a los procesos virales respiratorios más comunes. El incremento de número de casos de Síndrome Respiratorio Agudo Severo tipo 2 reportados en cada país ha causado un desplazamiento de las infecciones respiratorias agudas (IRAs) causadas por otros patógenos hasta un 70% el número de casos reportado durante la pandemia. Material y métodos: Se realizó un estudio descriptivo y transversal, con recolección de datos retrospectiva de fuente secundaria utilizando como fuente de información los boletines epidemiológicos semanales desde la semana 1 del mes de Enero 2019 a la semana 53 del mes de Diciembre del 2020 del Sistema nacional de vigilancia Epidemiológica del Ministerio de Salud Pública a través de la Dirección General de Epidemiología. Resultados: Se observa disminución de los casos de infección respiratoria aguda con un incremento respectivo en los casos de COVID-19 al comparar los años 2019 y 2020. La provincia con mayor número de casos fue el Distrito Nacional. Conclusión: Es necesario evaluar el comportamiento del Síndrome Respiratorio Agudo Severo tipo 2 con relación a otros patógenos para identificar si las infecciones respiratorias agudas retornarán a un estado previo a la pandemia, cuando el uso de mascarillas ya no sea necesario, Síndrome Respiratorio Agudo Severo tipo 2 será el patógeno prevalente.

Abstract Objective: Severe respiratory syndrome due to coronavirus type 2 is the microorganism responsible for causing COVID-19, a pathology with predominantly respiratory involvement that has a similar behavior to the most common respiratory viral processes. The increase in the number of severe acute respiratory syndrome type 2 cases reported in each country has caused a displacement of acute respiratory infections (ARIs) caused by other pathogens up to 70% of the number of cases reported during the pandemic. Material and methods: This study is descriptive and cross-sectional with retrospective data collection from secondary sources using as a source of information the weekly epidemiological bulletins from week 1 of January 2019 to week 53 of December 2020 of the National Epidemiological Surveillance System of the Ministry of Public Health through the General Directorate of Epidemiology. Results: A decrease in cases of acute respiratory infection with a respective increase in cases of COVID-19 was observed when comparing the years 2019 and 2020. The province with the highest number of cases was the National District. Conclusion: The behavior of severe acute respiratory syndrome type 2 relative to other pathogens needs to be evaluated to identify whether acute respiratory infections will return to a pre-pandemic state when facemask use is no longer necessary severe acute respiratory syndrome type 2 will be the prevalent pathogen.

Population-Level Effectiveness of an Inactivated Whole-Virion COVID-19 Vaccine: A Test Negative Case-Control Study in the Dominican Republic.

Background: A continuing nationwide vaccination campaign began in the Dominican Republic on February 16, 2021 to prevent severe consequences of acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Estimates of vaccine effectiveness under real-world conditions are needed to support policy decision making and inform further vaccine selection. Methods: We conducted a test-negative case-control study to assess the real-world effectiveness of nationwide coronavirus disease 2019 (COVID-19) vaccination program using an inactivated vaccine (CoronaVac) on preventing symptomatic SARS-CoV-2 infections and hospitalizations from August to November 2021 in the Dominican Republic. Participants were recruited from 10 hospitals in 5 provinces to estimate the effectiveness of full immunization (≥14 days after receipt of the second dose) and partial immunization (otherwise with at least 1 dose ≥14 days after receipt of the first dose). Results: Of 1078 adult participants seeking medical care for COVID-19-related symptoms, 395 (36.6%) had positive polymerase chain reaction (PCR) tests for SARS-CoV-2; 142 (13.2%) were hospitalized during 15 days of follow up, including 91 (23%) among 395 PCR-positive and 51 (7.5%) among 683 PCR-negative participants. Full vaccination was associated with 31% lower odds of symptomatic infection (odds ratio [OR], 0.69; 95% confidence interval [CI], 0.52-0.93) and partial vaccination was associated with 49% lower odds (OR, 0.51; CI, 0.30-0.86). Among 395 PCR-positive participants, full vaccination reduced the odds of COVID-19-related hospitalization by 85% (OR, 0.15; 95% CI, 0.08-0.25) and partial vaccination reduced it by 75% (OR, 0.25; 95% CI, 0.08-0.80); full vaccination was associated with reduced use of assisted ventilation by 73% (OR, 0.27; 95% CI, 0.15-0.49). Conclusions: Given the ancestral and delta viral variants circulating during this study period, our results suggest that the inactivated COVID-19 vaccine offered moderate protection against symptomatic SARS-CoV-2 infections and high protection against COVID-19-related hospitalizations and assisted ventilation. This is reassuring given that, as of August 2022, an estimated 2.6 billion inactivated CoronaVac vaccine doses had been administered worldwide. This vaccine will become a basis for developing multivalent vaccine against the currently circulating omicron variant.

Monitoring Temporal Changes in SARS-CoV-2 Spike Antibody Levels and Variant-Specific Risk for Infection, Dominican Republic, March 2021-August 2022.

To assess changes in SARS-CoV-2 spike binding antibody prevalence in the Dominican Republic and implications for immunologic protection against variants of concern, we prospectively enrolled 2,300 patients with undifferentiated febrile illnesses in a study during March 2021-August 2022. We tested serum samples for spike antibodies and tested nasopharyngeal samples for acute SARS-CoV-2 infection using a reverse transcription PCR nucleic acid amplification test. Geometric mean spike antibody titers increased from 6.6 (95% CI 5.1-8.7) binding antibody units (BAU)/mL during March-June 2021 to 1,332 (95% CI 1,055-1,682) BAU/mL during May-August 2022. Multivariable binomial odds ratios for acute infection were 0.55 (95% CI 0.40-0.74), 0.38 (95% CI 0.27-0.55), and 0.27 (95% CI 0.18-0.40) for the second, third, and fourth versus the first anti-spike quartile; findings were similar by viral strain. Combining serologic and virologic screening might enable monitoring of discrete population immunologic markers and their implications for emergent variant transmission.

Evaluation of sample pooling for the detection of SARS-CoV-2 in a resource-limited setting, Dominican Republic.

INTRODUCTION: COVID-19 is a worldwide public health threat. Diagnosis by RT-PCR has been employed as the standard method to confirm viral infection. Sample pooling testing can optimize the resources by reducing the workload and reagents shortage, and be useful in laboratories and countries with limited resources. This study aims to evaluate SARS-CoV-2 detection by sample pooling testing in comparison with individual sample testing. MATERIALS AND METHODS: We created 210 pools out of 245 samples, varying from 4 to 10 samples per pool, each containing a positive sample. We conducted detection of SARS-CoV-2-specific RdRp/E target sites. RESULTS: Pooling of three samples for SARS-CoV-2 detection might be an efficient strategy to perform without losing RT-PCR sensitivity. CONCLUSIONS: Considering the positivity rate in Dominican Republic and that larger sample pools have higher probabilities of obtaining false negative results, the optimal sample size to perform a pooling strategy shall be three samples.

Evaluation of sample pooling for the detection of SARS-CoV-2 in a resource-limited setting, Dominican Republic / Evaluación del análisis de muestras agrupadas para la detección de SARS-CoV-2 en entornos con recursos limitados, República Dominicana

Introduction: COVID-19 is a worldwide public health threat. Diagnosis by RT-PCR has been employed as the standard method to confirm viral infection. Sample pooling testing can optimize the resources by reducing the workload and reagents shortage, and be useful in laboratories and countries with limited resources. This study aims to evaluate SARS-CoV-2 detection by sample pooling testing in comparison with individual sample testing. Materials and methods: We created 210 pools out of 245 samples, varying from 4 to 10 samples per pool, each containing a positive sample. We conducted detection of SARS-CoV-2-specific RdRp/E target sites. Results: Pooling of three samples for SARS-CoV-2 detection might be an efficient strategy to perform without losing RT-PCR sensitivity. Conclusions: Considering the positivity rate in Dominican Republic and that larger sample pools have higher probabilities of obtaining false negative results, the optimal sample size to perform a pooling strategy shall be three samples.(AU)

Introducción: La COVID-19 es una amenaza de salud pública mundial. La RT-PCR es el método estándar para confirmar la infección. La estrategia de pruebas de muestras agrupadas puede reducir la carga de trabajo y la escasez de reactivos, y ser útil en países con escasos recursos. Evaluamos la detección del SARS-CoV-2 mediante esta estrategia en comparación con pruebas individuales. Materiales y métodos: Creamos 210 grupos de 245 muestras, de 4 a 10 muestras por grupo, cada uno con una muestra positiva. Realizamos extracción de ARN y qRT-PCR para detectar la presencia de la diana RdRp/E. Resultados: La combinación de hasta 3 muestras para la detección del SARS-CoV-2 podría ser una estrategia eficaz sin perder la sensibilidad. Conclusiones: Considerando la tasa de positividad en República Dominicana y que los grupos con más muestras tienen mayor probabilidad de obtener resultados falsos negativos, el tamaño óptimo para realizar esta estrategia es de 3 muestras.(AU)

Evaluation of sample pooling for the detection of SARS-CoV-2 in a resource-limited setting, Dominican Republic.

Introduction: COVID-19 is a worldwide public health threat. Diagnosis by RT-PCR has been employed as the standard method to confirm viral infection. Sample pooling testing can optimize the resources by reducing the workload and reagents shortage, and be useful in laboratories and countries with limited resources. This study aims to evaluate SARS-CoV-2 detection by sample pooling testing in comparison with individual sample testing. Materials and methods: We created 210 pools out of 245 samples, varying from 4 to 10 samples per pool, each containing a positive sample. We conducted detection of SARS-CoV-2-specific RdRp/E target sites. Results: Pooling of three samples for SARS-CoV-2 detection might be an efficient strategy to perform without losing RT-PCR sensitivity. Conclusions: Considering the positivity rate in Dominican Republic and that larger sample pools have higher probabilities of obtaining false negative results, the optimal sample size to perform a pooling strategy shall be three samples.

Introducción: La COVID-19 es una amenaza de salud pública mundial. La RT-PCR es el método estándar para confirmar la infección. La estrategia de pruebas de muestras agrupadas puede reducir la carga de trabajo y la escasez de reactivos, y ser útil en países con escasos recursos. Evaluamos la detección del SARS-CoV-2 mediante esta estrategia en comparación con pruebas individuales. Materiales y métodos: Creamos 210 grupos de 245 muestras, de 4 a 10 muestras por grupo, cada uno con una muestra positiva. Realizamos extracción de ARN y qRT-PCR para detectar la presencia de la diana RdRp/E. Resultados: La combinación de hasta 3 muestras para la detección del SARS-CoV-2 podría ser una estrategia eficaz sin perder la sensibilidad. Conclusiones: Considerando la tasa de positividad en República Dominicana y que los grupos con más muestras tienen mayor probabilidad de obtener resultados falsos negativos, el tamaño óptimo para realizar esta estrategia es de 3 muestras.

Genome Sequence of a Recombinant SARS-CoV-2 Lineage XAM (BA.1.1/BA.2.9) Strain from a Clinical Sample in Santo Domingo, Dominican Republic.

Here, we report a recombinant severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) lineage XAM (Omicron BA.1.1/BA.2.9) strain that was collected in Santo Domingo, Dominican Republic. This demonstrates how SARS-CoV-2 variants can vary greatly between regions and thus underlines the great importance of regional genomic surveillance efforts.

Antimicrobial resistance in Escherichia coli and Pseudomonas aeruginosa before and after the coronavirus disease 2019 (COVID-19) pandemic in the Dominican Republic.

Objective: To describe antimicrobial resistance before and after the COVID-19 pandemic in the Dominican Republic. Design: Retrospective study. Setting: The study included 49 outpatient laboratory sites located in 13 cities nationwide. Participants: Patients seeking ambulatory microbiology testing for urine and bodily fluids. Methods: We reviewed antimicrobial susceptibility reports for Escherichia coli isolates from urine and Pseudomonas aeruginosa (PSAR) from bodily fluids between January 1, 2018, to December 31, 2021, from deidentified susceptibility data extracted from final culture results. Results: In total, 27,718 urine cultures with E. coli and 2,111 bodily fluid cultures with PSAR were included in the analysis. On average, resistance to ceftriaxone was present in 25.19% of E. coli isolated from urine each year. The carbapenem resistance rates were 0.15% for E. coli and 3.08% for PSAR annually. The average rates of E. coli with phenotypic resistance consistent with possible extended-spectrum ß-lactamase (ESBL) in urine were 25.63% and 24.75%, respectively, before and after the COVID-19 pandemic. The carbapenem resistance rates in urine were 0.11% and 0.20%, respectively, a 200% increase. The average rates of PSAR with carbapenem resistance in bodily fluid were 2.33% and 3.84% before and after the COVID-19 pandemic, respectively, a 130% percent increase. Conclusions: Resistance to carbapenems in PSAR and E. coli after the COVID-19 pandemic is rising. These resistance patterns suggest that ESBL is common in the Dominican Republic. Carbapenem resistance was uncommon but increased after the COVID-19 pandemic.

Strengthening research ethics governance and regulatory oversight in Central America and the Dominican Republic in response to the COVID-19 pandemic: a qualitative study.

BACKGROUND: Good governance and regulatory supervision are required to conduct research in an international public health emergency context and to ensure compliance with ethical standards. The "Strengthening research ethics governance and regulatory oversight in Central America and the Dominican Republic in response to the COVID-19 pandemic" study is a regional effort in which research ethics stakeholders participated in addressing research ethics governance and preparedness response challenges to the COVID-19 pandemic in Central America and the Dominican Republic. METHODS: A qualitative action research study was conducted following a participatory approach. Research ethics stakeholders in Central America and the Dominican Republic were mapped; a regional webinar and three virtual workshops were conducted discussing research ethics governance, ethics review and collaborative research practice during the pandemic. A roundtable session presented results and obtained feedback on a draft of a policy to strengthen regional research ethics governance. RESULTS: Countries across Central America and the Dominican Republic are at different stages in their development of research ethics systems. Countries with more established systems before COVID-19 were better organized and prepared to respond. This finding argues against improvisation and supports further work on strengthening governance of research ethics systems. Community engagement in research ethics public policy-making is practically absent in the region. Research and research ethics collaboration schemes are lacking amongst the countries; however, there are incipient initiatives in the region, such as the Central America and Caribbean Network of Research Ethics Committees. A policy brief with recommendations on how to advance towards strengthening the governance of research ethics systems was prepared and submitted to the Central American Integration System for analysis and possible approval. CONCLUSION: National research ethics systems in Central America and the Dominican Republic were unprepared to respond to the COVID-19 pandemic with respect to research oversight and effective collaboration. In most cases, national research ethics systems were found to be weak, and regional research collaboration was practically absent. To promote collaboration, a joint strategy needs to be developed with a regional vision towards sharing knowledge and best practices.

The Impact of COVID-19 on the Monitoring of Pregnancy and Delivery of Pregnant Women in the Dominican Republic.

Pregnancy monitoring is vital to guaranteeing that both the foetus and the mother are in optimal health conditions. WHO protocols recommend at least eight medical examinations during the pregnancy period. While the cancellation or reduction of appointments during pregnancy due to the pandemic may help reduce the risk of infection, it could also negatively influence perinatal outcomes and the birthing process. The aim of this research was to analyse the differences in perinatal outcomes and birth characteristics in two groups of pregnant women: women who gave birth before and during the pandemic, and whether these differences are due to changes in pregnancy monitoring because of the COVID-19 situation. A retrospective study was carried out from July 2018 to December 2021, at the Santo Domingo Hospital (Dominican Republic). A total of 1109 primiparous pregnant women were recruited for this study during the birthing process and perinatal visits. The results describe how women who gave birth before the pandemic had greater control and monitoring of their pregnancy, more doctor visits (p = 0.001), fewer caesarean sections (p = 0.006), and more skin-to-skin contact after birth (p = 0.02). During the COVID-19 pandemic, pregnant women's attendance at routine pregnancy monitoring, both doctor visits and ultrasound scans, has decreased, leading to an increase in the number of caesarean and instrumental deliveries. At the perinatal level, processes such as skin-to-skin contact after birth between mother and newborn or the introduction of early breastfeeding in the delivery room have also been reduced.

SARS-CoV-2 seroprevalence, cumulative infections, and immunity to symptomatic infection - A multistage national household survey and modelling study, Dominican Republic, June-October 2021.

Background: Population-level SARS-CoV-2 immunological protection is poorly understood but can guide vaccination and non-pharmaceutical intervention priorities. Our objective was to characterise cumulative infections and immunological protection in the Dominican Republic. Methods: Household members ≥5 years were enrolled in a three-stage national household cluster serosurvey in the Dominican Republic. We measured pan-immunoglobulin antibodies against the SARS-CoV-2 spike (anti-S) and nucleocapsid glycoproteins, and pseudovirus neutralising activity against the ancestral and B.1.617.2 (Delta) strains. Seroprevalence and cumulative prior infections were weighted and adjusted for assay performance and seroreversion. Binary classification machine learning methods and pseudovirus neutralising correlates of protection were used to estimate 50% and 80% protection against symptomatic infection. Findings: Between 30 Jun and 12 Oct 2021 we enrolled 6683 individuals from 3832 households. We estimate that 85.0% (CI 82.1-88.0) of the ≥5 years population had been immunologically exposed and 77.5% (CI 71.3-83) had been previously infected. Protective immunity sufficient to provide at least 50% protection against symptomatic SARS-CoV-2 infection was estimated in 78.1% (CI 74.3-82) and 66.3% (CI 62.8-70) of the population for the ancestral and Delta strains respectively. Younger (5-14 years, OR 0.47 [CI 0.36-0.61]) and older (≥75-years, 0.40 [CI 0.28-0.56]) age, working outdoors (0.53 [0.39-0.73]), smoking (0.66 [0.52-0.84]), urban setting (1.30 [1.14-1.49]), and three vs no vaccine doses (18.41 [10.69-35.04]) were associated with 50% protection against the ancestral strain. Interpretation: Cumulative infections substantially exceeded prior estimates and overall immunological exposure was high. After controlling for confounders, markedly lower immunological protection was observed to the ancestral and Delta strains across certain subgroups, findings that can guide public health interventions and may be generalisable to other settings and viral strains. Funding: This study was funded by the US CDC.

Informe anual 2021. República Dominicana: Respuesta a la COVID-19 y preparación para el futuro

En el 2022 se celebra el 120.º aniversario de la Organización Panamericana de la Salud (OPS). En calidad de organismo independiente especializado en salud del sistema interamericano, la OPS brinda cooperación técnica a sus Estados Miembros para abordar las enfermedades transmisibles y no transmisibles y sus causas, fortalecer los sistemas de salud y responder a situaciones de emergencia y desastres en toda la Región de las Américas. Asimismo, como Oficina Regional de la Organización Mundial de la Salud para la Región de las Américas, participa en los equipos de las Naciones Unidas en los países, colaborando con otros organismos, fondos y programas del sistema de las Naciones Unidas para contribuir al logro de los Objetivos de Desarrollo Sostenible a nivel de país. A nivel subregional, la OPS trabaja con los mecanismos de integración para que la salud y sus determinantes tengan un lugar en la agenda política. En el informe anual correspondiente al 2021 se presenta la cooperación técnica de la OPS en los países y territorios en este período, con la aplicación de las estrategias de cooperación en los países, la respuesta a sus necesidades y prioridades, y el desarrollo de las actividades en el marco de los mandatos regionales y mundiales de la OPS y los Objetivos de Desarrollo Sostenible. En consonancia con el tema general de "responder a la COVID-19 y prepararse para el futuro", se ponen de relieve las medidas que ha adoptado la OPS con respecto a la pandemia de COVID-19 y sus esfuerzos continuos en áreas prioritarias como las emergencias de salud, los sistemas y servicios de salud, las enfermedades transmisibles, las enfermedades no transmisibles y la salud mental, la salud a lo largo del curso de vida y la equidad en la salud. También se presenta un resumen financiero del bienio 2020-2021.

Situación de salud cardiovascular en la República Dominicana / Cardiovascular health situation in the Dominican Republic

Introducción: La salud cardiovascular comprende un conjunto de variables que interactúan entre sí (entre factores no modificables y factores modificables) para modificar el riesgo de padecer un evento cardiovascular (EVC). Material y Métodos: Se realizóuna encuesta en línea basada en Google Forms para medir la salud cardiovascular en la población adulta en la República Dominicana. Se utilizó un cuestionario confeccionado por los autores basado en los criterios DUCTH de hipercolesterolemia. Resultados: Las características sociodemográficas de los participantes fueron heterogéneas, 60% de los participantes tenía antecedente familiar patológico, 55% reportó inactividad física, las prácticas dietéticas de nuestra muestra no fueron apropiadas, observando que 70% no ingería oingería pocas veces yogur, patrón observado en el 44% con respecto a la ingesta de leche, sin embargo, el 94% ingería con frecuencia carne. Conclusión: La salud cardiovascular de los dominicanos posee una menor calidad asociada a un mayor consumo de carnes y tabaco y menor cantidad de ejercicio; dicho comportamiento puede haber estado influido por la pandemia del COVID-19 o las características de la región.

Introduction:Cardiovascular health comprises a set of variables that interact with each other (between non-modifiable factors and modifiable factors) to modify the risk of sufferinga cardiovascular event (CVD). Material and Methods: An online survey based on Google Forms was conducted to measure cardiovascular health in the adult population in the Dominican Republic. A questionnaire prepared by the authors based on the DUCTH criteria for hypercholesterolemia was used. Results: The sociodemographic characteristics of the participants were heterogeneous, 60% of the participants had a pathological family history, 55% were physical inactive, observing 70% had no or minimum intake of yogurt, same behavior was observed in 44% of the sample related to milk intake, yet 94% had a frequent intake of meat. Conclusion: The cardiovascular health of Dominicans has a lower quality associated with a higher consumption of meat and tobacco and a lower amount of exercise; This behavior may have been influenced by the COVID-19 pandemic or the characteristics of the region.

Assessment of a Comparative Bayesian-Enhanced Population-Based Decision Model for COVID-19 Critical Care Prediction in the Dominican Republic Social Security Affiliates.

INTRODUCTION: The novel coronavirus disease 2019 (COVID-19) has been a major health concern worldwide. This study aims to develop a Bayesian model to predict critical outcomes in patients with COVID-19. METHODS: Sensitivity and specificity were obtained from previous meta-analysis studies. The complex vulnerability index (IVC-COV2 index for its abbreviation in Spanish) was used to set the pretest probability. Likelihood ratios were integrated into a Fagan nomogram for posttest probabilities, and IVC-COV2 + National Early Warning Score (NEWS) values and CURB-65 scores were generated. Absolute and relative diagnostic gains (RDGs) were calculated based on pretest and posttest differences. RESULTS: The IVC-COV2 index was derived from a population of 1,055,746 individuals and was based on mortality in high-risk (71.97%), intermediate-risk (26.11%), and low-risk (1.91%) groups. The integration of models in which IVC-COV2 intermediate + NEWS ≥ 5 and CURB-65 > 2 led to a "number needed to (NNT) diagnose" that was slightly improved in the CURB-65 model (2 vs. 3). A comparison of diagnostic gains revealed that neither the positive likelihood ratio (P = 0.62) nor the negative likelihood ratio (P = 0.95) differed significantly between the IVC-COV2 NEWS model and the CURB-65 model. CONCLUSION: According to the proposed mathematical model, the combination of the IVC-COV2 intermediate score and NEWS or CURB-65 score yields superior results and a greater predictive value for the severity of illness. To the best of our knowledge, this is the first population-based/mathematical model developed for use in COVID-19 critical care decision-making.

Travel Medicine in the Dominican Republic / La Medicina del Viajero en República Dominicana

Introduction: Travel Medicine specialty has existed for more than 40 years. However, this is practically unknown by Dominicans despite the large number of people who travel to and from our country. Methods: With the objective of determining the knowledge of Dominicans about the existence of Travel Medicine specialty and their attitudes in relation to it, we conducted a virtual survey of 8 questions, in which 2,584 Dominicans participated. Results: Despite the fact that more than 80 % of those surveyed knew that to travel to certain countries they had to take certain vaccines, less than 25 % had heard of the specialty of Traveler's Medicine. After knowing the definition and objectives of the specialty, more than 90 % of the participants considered it important to consult a specialist prior to the trip. Conclusion: The lack of knowledge of the specialty and the absence of this service in the public health system are the main barriers to the access of Dominicans to the Travel Medicine consultation. It is necessary to publicize the specialty, using scientific evidence and taking as an example the worldwide dissemination of COVID-19 through travelers, to make the population aware of the importance of pre and post-trip consultation, as well as the creation of this service in public hospitals

Introducción: la especialidad Medicina del Viajero existe hace más de 40 años. Sin embargo, esta es prácticamente desconocida por los dominicanos a pesar de la gran cantidad de personas que viajan desde y hacia nuestro país. Material y métodos: Con el objetivo de determinar el conocimiento de los dominicanos sobre la existencia de la Medicina del Viajero y sus actitudes en relación a esta, realizamos una encuesta virtual de 8 preguntas, de la cual participaron 2,584 dominicanos. Resultados: a pesar de que más del 80 % de los encuestados sabían que para viajar a determinados países debían tomar ciertas vacunas, menos del 25 % había escuchado hablar de la especialidad Medicina del Viajero. Tras conocer la definición y objetivos de la especialidad más del 90 % de los participantes consideró importante realizar una consulta previa al viaje con un especialista. Conclusión: el desconocimiento de la especialidad y la ausencia de este servicio en el sistema público de salud son las principales barreras para el acceso de los dominicanos a la consulta de Medicina del Viajero. Es necesario dar a conocer la especialidad, utilizando evidencia científica y tomando como ejemplo la difusión mundial de la COVID-19 a través de los viajeros, concienciar a la población de la importancia de la consulta pre y post viaje, así como la creación de este servicio en hospitales públicos