Use of standardized criteria to verify interruption of a measles outbreak in the Buenos Aires Metropolitan Area during the COVID-19 pandemic

Objective

To describe the strategy implemented for interruption of the 2019-2020 measles outbreak in the Metropolitan Area of Buenos Aires (Argentina) and application of the Pan American Health Organization (PAHO) standardized outbreak closure criteria to verify interruption of viral circulation in an adverse setting (the COVID-19 pandemic). 

Sustaining measles and rubella elimination through the Regional Monitoring and Re-Verification Commission in the Americas

The elimination of endemic rubella and measles transmission in the Region of the Americas was verified by the Pan American Health Organization’s (PAHO) Regional Verification Commission in 2015 and 2016, respectively. Upon achieving this success, this Commission was disbanded. Shortly afterwards, the Region faced challenges in the post-elimination era, notably responding to and stopping transmission of imported measles cases. As a result, Brazil and Venezuela (Bolivarian Republic of) lost their measles-free status in February 2019 and July 2018, respectively.

Global challenges and solutions to achieving and sustaining measles and rubella elimination

Measles and rubella have long been recognized as priorities for disease prevention because of their devastating consequences for child health; hence, all World Health Organization (WHO) regions currently have a goal to eliminate measles and four out of six WHO regions have a goal to eliminate rubella. Significant global progress has been made in the twenty-first century, with more than 40% of countries in the world verified by a Regional Verification Commission as having eliminated measles and more than 50% of countries having sustained rubella elimination.

Measles and Rubella IgG Seropositivity in the Post-elimination Era, Costa Rica, 2012-2023

Objective

To determine measles and rubella IgG seropositivity in the post-elimination era, based on data generated by the Costa Rican National Reference Center for Virology laboratory at Inciensa from 2012 to 2023. 

Methods

Cross-sectional, descriptive, observational study analyzing the frequency of measles IgG and rubella IgG reactivity by enzyme-linked immunofluorescence (ELISA) in 877 subjects. 

Comprehensive approach to the interruption of the measles outbreak in Venezuela, 2017-2019: lessons learned

Objective

Describe the challenges, strategies and lessons learned in Venezuela during the measles outbreak of 2017–2019, and discuss the mechanisms employed for its containment, which led to the interruption of endemic transmission.

Methods

Descriptive study of the actions taken by Venezuela to interrupt the outbreak. 

Lessons for sustaining the elimination of measles, rubella, and congenital rubella syndrome in the Caribbean

This study searched grey literature and PubMed for strategies to sustain the elimination of measles, rubella, and congenital rubella syndrome and prevent their reintroduction in the Caribbean. Strategies were categorized at the macro, meso, and micro health levels.

Sensitivity and specificity of epidemiological criteria for the case definition of congenital syphilis in a retrospective cohort in Brazil

Objective

To assess the sensitivity and specificity of the modified criteria for case definition of congenital syphilis implemented in 2017, which excluded treatment of the sexual partner as a necessary condition for adequate maternal treatment. 

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