ArticleBMC public health2023
Temporal and spatial distribution trends of polio vaccine coverage in less than one-year old children in Brazil, 2011-2021.
Article in BMC public health, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 33 citations in OpenAlex.
- Spatiotemporal dynamics of waterborne and foodborne disease outbreaks in Brazil: regional inequality analysis and risk area mapping to inform public health strategies.BMC public health · 2026Article
- Vaccination coverage and factors associated with incomplete polio vaccine schedule in children born in 2017-2018, in state capitals and interior region municipalities of Northeast Brazil.Epidemiologia e servicos de saude : revista do Sistema Unico de Saude do Brasil · 2025Article
- Discrepancy between official records of the Brazilian National Immunization Program Information System and the household survey about vaccination coverage in Cubatão, São Paulo: cross-sectional study, 2023.Epidemiologia e servicos de saude : revista do Sistema Unico de Saude do Brasil · 2025Article
- Article
- Full vaccination coverage with valid doses among the 2017 and 2018 live birth cohort in the Southeast region of Brazil.Epidemiologia e servicos de saude : revista do Sistema Unico de Saude do Brasil · 2024Article
- Analysis of the impact of health interventions on vaccination coverage for children under two years of age in municipalities of Minas Gerais.Revista brasileira de epidemiologia = Brazilian journal of epidemiology · 2024Article
- Risk classification for the transmission of vaccine-preventable diseases in the state of Minas Gerais, Brazil: 2018 to 2022.PloS one · 2024Article
- [Brazilian Ministry of Health strategy to increase vaccination coverage at bordersEstrategia del Ministerio de Salud de Brasil para aumentar las tasas de cobertura de vacunación en las fronteras].Revista panamericana de salud publica = Pan American journal of public health · 2024Article
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Authors and funding
11 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundLow polio vaccine coverage can result in the spread of Poliovirus to areas free from viral circulation. This study analyzed the temporal trends and spatial distribution of polio vaccine coverage in one year-old children in Brazil, between 2011 and 2021.
methodsThis was an ecological, time-series study (2011 to 2021) with annual vaccine coverages against poliomyelitis, extracted from the Information System of the National Immunization Program from the 26 States and the Distrito Federal (DF). The percentage reductions in vaccination coverage in Brazil and in the Regions were calculated. Prais-Winsten regression models were used to analyze time series for the Regions and States, and spatial analysis identified the distribution of clusters (high-high; low-low; high-low and low-high) of vaccination coverages across Brazilian municipalities, using a 5% significance level.
resultsFrom 2011 to 2021, the coverage of polio vaccines decreased by 29,9%. There was a progressive increase observed in clusters resulting in low vaccination coverages (140 low-low Brazilian municipalities in 2011 vs. 403 in 2021), mostly reported in the North and Northeast regions of the country. There was a downward trend in vaccination coverages in 24 of the 26 States and DF (p ≤ 0.05).
conclusionsThe reduction in polio vaccine coverage, as observed in the North and Northeast regions of Brazil, may favor the spread of Poliovirus. Therefore, vaccination strategies should be prioritized for children residing in areas with sharp and recurrent declines in vaccination coverages, including travelers, migrants, and refugees.
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