Good practices in epidemiological surveillance for the sustainability of measles, rubella, and congenital rubella syndrome elimination in El Salvador, 2019-2023

Objective

Describe good practices in epidemiological surveillance implemented in El Salvador between 2019 and 2023 to sustain the elimination of measles, rubella, and congenital rubella syndrome. 

Method

Special descriptive report on the implementation of good epidemiological and laboratory surveillance practices for measles, rubella, and congenital rubella syndrome from 2019 to 2023. 

Rapid vaccination monitoring and its impact on vaccination coverage for high-quality catch-up campaigns in the Dominican Republic, 2023

Objective

To assess the contribution of rapid vaccination monitoring to the achievement of vaccination coverage targets in catch-up vaccination campaigns. 

Methods

Data on catch-up vaccination were obtained from the database of the Directorate of Vaccine- Preventable Diseases. Data analysis was performed in Stata V.15®. Frequency and summary statistics were calculated; the p value was used to determine statistical significance. The change in mean coverage between interventions was assessed with Student’s t-test. 

Strategies and barriers to the implementation of continuing education in sentinel hospitals for the surveillance of COVID-19 vaccine safety in Honduras, 2022-2023

Objective

To describe the continuing education strategies implemented as part of the academic training of health workers; related barriers and facilitators; and the perceptions of health workers in sentinel hospitals in Honduras regarding changes in their knowledge. 

COVID-19 vaccine safety: results of active surveillance at a sentinel site in Argentina

Objective

To analyze the results of surveillance of adverse events of special interest (AESI) within the context of the COVID-19 vaccination campaign at a sentinel site in Argentina. The retrospective (pre-vaccination) period was compared with the prospective (vaccination) period to identify safety signals. 

Method

Retrospective and prospective search for AESI based on ICD-10 hospital discharge codes. A descriptive analysis, moving-averages trend smoothing, and control charts were used to detect changes in AESI behavior. 

A comprehensive approach to achieving reverification of measles elimination in Venezuela, 2019-2023

Objective

To describe the comprehensive activities implemented in the Bolivarian Republic of Venezuela to achieve reverification of measles elimination by 2023. 

Method

Descriptive study of the procedures implemented to achieve reverification of measles elimination by 2023 according to the components set forth in the Regional Framework for the Monitoring and Re-verification of Measles, Rubella, and Congenital Rubella Syndrome Elimination in the Americas, published in 2022. 

Molecular epidemiology of rubella during the pre- and post-elimination eras in the Americas

Since the last case of indigenous rubella virus (RuV) was detected in 2009 in the Region of the Americas, sporadic rubella and congenital rubella cases have been confirmed, and subsequently, a low number of associated sequences have been reported. Fifty-one sequences of wild-type RuV, representing four genotypes (1E, 1G, 1J, and 2B), were reported from five countries, with confirmed sources of exposure for 46 cases. Phylogenetic analysis revealed the diversity of these viruses, showing no associations with sustained endemic transmission from previously endemic strains.

High-quality follow-up measles and rubella vaccination campaign in Mexico, 2021

Objective

To describe Mexico’s experience of a high-quality follow-up vaccination campaign against measles and rubella in children aged 1 to 4 years, and actions taken to recover the coverage of other biologics during the COVID-19 health emergency. 

Method

Use of a microplanning tool in the design and implementation of a follow-up campaign to protect 8 604 781 girls and boys aged 1 to 4 years and to complete other vaccination schedules, followed by the implementation of rapid vaccination monitoring. 

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