Objective

To document and compare risk factors and control measures for the largest measles outbreaks in the post-elimination era in the Region of the Americas. 

Methods

Description of risk factors such as vaccination coverage, notification rate of suspected cases, measles incidence, and a summary of control measures for major measles outbreaks in six countries from 2017 to 2023. The analysis also includes a review of outbreak characteristics (time, place, and person). 

Objective

Identify the challenges that Mexico faced during the measles outbreak during the COVID-19 pandemic and describe the interventions to interrupt measles virus circulation. 

Methods

Descriptive, retrospective study of actions taken during the measles outbreak during the COVID-19 pandemic. 

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. 

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. 

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. 

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. 

Objective

To describe the implementation and pioneering work of a vaccine pharmacovigilance committee in the state of São Paulo, Brazil, for the analysis of events supposedly attributable to vaccination or immunization (ESAVI) during the COVID-19 pandemic.

The objective of this study was to analyze the role of risk communication in the response to cases of adverse events supposedly attributable to vaccination and immunization (ESAVI) in countries of the Americas.

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. 

Objective

To estimate the direct costs associated with the diagnosis, treatment, and control of measles cases in Brazil from 2018 to 2020.