Temporal Trend of the Dropout Rate and Vaccination Coverage of the Triple Viral Vaccine in Brazil, 2014-2021

Study contributions Main results Annual vaccination coverage was below 95% in Brazil. The second dose of the vaccine showed stationary and decreasing trends in the country’s Federative Units. The dropout rate varied greatly throughout the study period. Implications for services The results found regarding the trends serve to inform and point to the urgency of planning actions aimed at improving coverage of the triple viral vaccine nationally in Brazil. Perspectives Investments in enhanced training of epidemiological surveillance professionals and enhanced computerized systems are necessary, with a view to continuous monitoring, to support actions to promote better and timely vaccine coverage.