Background Due to the social isolation measures adopted in an attempt to mitigate the risk of transmission of SARS-CoV-2, there has been a reduction in vaccination coverage of children and adolescents in several countries and regions of the world. Objective Analyze the number of doses of vaccine against Measles-Mumps-Rubella (MMR) applied before and after the beginning of mitigation measures due to COVID-19 pandemic in Brazil. Methods The data collected refer to the number of doses of the MMR vaccine applied monthly to the target population residing in Brazil: cahildren, aged 12 months (first dose) and children, aged 9 years (second dose), from April 2019 to December 2020. Differences in MMR vaccine doses from April 2019 to March 2020 (before the start of mitigation measures) and April 2020 to September 2020 (after the start of the mitigation measures) were evaluated. Spatial analysis identified clusters with a high percentage of reduction in the median of applied doses no Brazil. Results There was a reduction in the median of doses applied in the Regions North (− 33.03%), Northeast (− 43.49%) and South (− 39.01%) e nos Estados Acre (− 48.46%), Amazonas (− 28.96%), Roraima (− 61.91%), Paraíba (− 41.58%), Sergipe (− 47.52%), Rio de Janeiro (-59.31%) and Santa Catarina (− 49.32) (p < 0.05). High-high type spatial clusters (reduction between 34.00 and 90.00%) were formed in the five regions of Brazil (Moran’s I = 0.055; p = 0.01). Conclusion A reduction in the number of MMR vaccine doses was evidenced as a possible effect by the restrictive actions of COVID-19 in Brazil.

Objective: to analyze the association of structural factors and geographical differences in the availability of the measle, mumps, and rubella vaccine in primary care services in Brazil. Methods: this is a cross-sectional study, with secondary data from the second cycle of external evaluations of the Primary Care Quality Improvement Program (Programa de Melhoria da Qualidade da Atenção Básica -PMAQ-AB) collected from 19,752 vaccination services across the country between 2013 and 2014. We estimated the prevalence ratio (PR) and their respective 95% confidence intervals (CI 95%) using the Poisson multivariate regression technique with robust variances. Results: the MMR vaccine was always available in 93% of the services studied, but with regional differences, with the lowest frequency observed in the North (87.4%; p <0.

RESUMO Objetivo Analisar as fake news sobre imunobiológicos tomando como referência a hesitação vacinal no modelo dos 3Cs (confiança, complacência e conveniência) da Organização Mundial da Saúde. Método Trata-se de uma pesquisa qualitativa de caráter exploratório que utilizou análise de conteúdo para analisar fake news em três sites de checagem de notícias nacionais. Resultados Foram analisadas 20 fake news relacionadas a imunobiológicos, sendo 55% publicadas em 2018 e 63% relacionadas à vacina contra febre amarela. A partir da análise dos resultados, duas categorias empíricas foram consideradas: Imunobiológicos têm potencial risco de morte/sequela e Imunobiológicos são ineficazes. Conclusão As fake news têm potencial para produzir hesitação vacinal baseado no modelo dos 3Cs. Sendo necessário, portanto, repensar práticas comunicativas em saúde que não subestimem as assimetrias e as iniquidades que caracterizam a desigual sociedade brasileira. Considerando que a enfermagem é a maior força de trabalho nas salas de vacinas, observa-se a necessidade do engajamento desses profissionais como veículo ativo de informações verídicas em imunobiológicos para a população.

Objective: to analyze the association between the factors of the social environment and the coverage rates of the human papillomavirus (HPV) vaccine in adolescents, in the State of Minas Gerais, Brazil. Method: this is an epidemiological, ecological study, with panel and trend analysis from 2016 to 2020. The population consisted of adolescents aged 9 to 13 years. The environmental variables were coverage rates, the municipal index of human development, income, education, and longevity; and the rate of violence. The Prais-Winsten autoregression and the panel regression model were used, in addition to the estimate of the mean annual percentage variation. Results: the vaccination coverage rates are below the goals recommended by the Ministry of Health for all regions analyzed. Moreover, these rates are associated with factors related to the application of the first dose and to aspects inherent to the social environment, such as the rate of violence. Conclusion: our findings showed that, although tenuous, aspects of the environment, in addition to individual characteristics, provide relevant information to understand the occurrence of health outcomes, since this vaccination campaign presents a strong influence of the environment and age as factors associated with the low rates.

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OBJECTIVE To analyze the number of yellow fever vaccine doses administered before and during the covid-19 pandemic in Brazil. METHODS This is an ecological, time series study based on data from the National Immunization Program. Differences between the median number of yellow fever vaccine doses administered in Brazil and in its regions before (from April/2019 to March/2020) and after (from April/2020 to March/2021) the implementation of social distancing measures in the country were assessed via the Mann-Whitney test. Prais-Winsten regression models were used for time series analyses. RESULTS We found a reduction in the median number of yellow fever vaccine doses administered in Brazil and in its regions: North (-34.71%), Midwest (-21.72%), South (-63.50%), and Southeast (-34.42%) (p < 0.05). Series showed stationary behavior in Brazil and in its five regions during the covid-19 pandemic (p > 0.05). Brazilian states also showed stationary trends, except for two states which recorded an increasing trend in the number of administered yellow fever vaccine doses, namely: Alagoas State (before: β = 64, p = 0.081; after: β = 897, p = 0.039), which became a yellow fever vaccine recommendation zone, and Roraima State (before: β = 68, p = 0.724; after: β = 150, p = 0.000), which intensified yellow fever vaccinations due to a yellow fever case confirmation in a Venezuelan State in 2020. CONCLUSION The reduced number of yellow fever vaccine doses administered during the covid-19 pandemic in Brazil may favor the reemergence of urban yellow fever cases in the country.

Resumo O estudo analisa a prevalência de diabetes autorreferido e fatores associados na população adulta brasileira. Estudo transversal usando a Pesquisa Nacional de Saúde 2019. Estimaram-se as prevalências e razões de prevalência brutas (RPb) e ajustadas (RPa) de diabetes autorreferido, com intervalos de confiança (IC95%), empregando-se regressão de Poisson. Nos 82.349 adultos, a prevalência de diabetes autorreferido foi de 7,7%. Associaram-se positivamente: idade avançada, sendo maior após 60 anos (RPa 24,87; IC95%: 15,78-39,18); residir nas regiões Nordeste (RPa 1,16; IC95%: 1,04-1,29), Sudeste (RPa 1,27; IC95%: 1,14-1,43), Sul (RPa 1,18; IC95%: 1,05-1,34) e Centro-Oeste (RPa 1,21; IC95%: 1,06-1,38), ser ex-fumante (RPa 1,17; IC95%: 1,09-1,27), autoavaliação de saúde regular (RPa 2,41; IC95%: 2,21-2,64), ruim/muito ruim (RPa 3,45; IC95%: 3,06-3,88), ter doença cardíaca (RPa 1,81; IC95%: 1,64-2,00), hipertensão (RPa 2,84; IC95%: 2,60-3,69), colesterol elevado (RPa 2,22; IC95%: 2,05-2,41), sobrepeso (RPa 1,49; IC95%: 1,36-1,64) e obesidade (RPa 2,25; IC95%: 2,05- 2,47). Conclui-se que o diabetes nos adultos brasileiros se associa a fatores sociodemográficos, envelhecimento, estilos de vida e morbidades. Esses resultados podem orientar políticas públicas para prevenção e controle da doença no Brasil.

Objective: to analyze the prevalence of schoolchildren vaccinated against human papillomavirus (HPV) and the reasons related to non-vaccination. Method: cross-sectional study, with data from the 2019 National Survey of School Health. The sample consisted of 160,721 students aged 13 to 17 years. The prevalence and confidence intervals (95%CI) of vaccinated adolescents were estimated according to location, sex, and administrative dependence of the school. The differences between the strata were evaluated with the Chi-square test. Adjusted prevalence ratios (aPR) and 95%CI were estimated with the Poisson regression model. Results: most of the students were vaccinated (62.9%), and the prevalence of girls (76.1%) was higher than that of boys (49.1%). The most prevalent reason for not vaccinating was “did not know they had to take” (46.8%), with the highest aPR in public schoolchildren in Brazil (1.6; 95%CI 1.5;1.7), from the Northeast region (1.2; 95%CI 1.1;1.2), and in students from private schools in the Northeast regions (1.1; 95%CI 1.1;1.2) and North (1.3; 95%CI 1.2;1.4). Conclusion: one out of every two Brazilian schoolchildren was vaccinated against HPV. Misinformation was a recurring reason for non-vaccination. The North and Northeast regions had the highest prevalence of non-vaccinated people, observed mainly in adolescents from public schools.