ArticleBMC infectious diseases2021
Number of doses of Measles-Mumps-Rubella vaccine applied in Brazil before and during the COVID-19 pandemic.
Article in BMC infectious diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 3 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
19 citing papers in PubMed, 3 syntheses or guidelines pooled it, 49 citations in OpenAlex.
- Tailoring educational interventions targeting parental vaccine hesitancy: a systematic review of quantitative studies.Frontiers in public health · 2026Pooled it
- The influence of the COVID-19 pandemic on measles vaccination coverage.Cadernos de saude publica · 2025Pooled it
- Disruptions to routine childhood vaccinations in low- and middle-income countries during the COVID-19 pandemic: A systematic review.Frontiers in pediatrics · 2022Pooled it
- Community-based intervention to improve measles vaccination completion in marginalised community settlements in Kota Kinabalu, Sabah: a cluster randomised control trial.BMC infectious diseases · 2025Trial
- Risk of reintroduction of vaccine-preventable diseases in the state of São Paulo, Brazil.Revista de saude publica · 2026Article
- Genotypic investigation of Mycobacterium leprae in patients with relapsing leprosy in Mato Grosso, Brazil.Medical microbiology and immunology · 2025Article
- Spatial analysis of meningococcal c vaccination coverage in children in BRAZIL between 2012 and 2024.BMC pediatrics · 2025Article
- Risk classification for the transmission of vaccine-preventable diseases in the state of Minas Gerais, Brazil: 2018 to 2022.PloS one · 2024Article
- Impact of a research-action on vaccination indicators in the state of Minas Gerais, Brazil.Revista de saude publica · 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
- Measles, mumps and rubella vaccination coverage in capitals and interior region municipalities of Northeast Brazil: a household survey in a cohort of children born in 2017 and 2018.Epidemiologia e servicos de saude : revista do Sistema Unico de Saude do Brasil · 2024Article
- Temporal and spatial distribution trends of polio vaccine coverage in less than one-year old children in Brazil, 2011-2021.BMC public health · 2023Article
- COVID-19 vaccines and a perspective on Africa.Trends in immunology · 2023Review
- Impact of COVID-19 on routine childhood immunisations in low- and middle-income countries: A scoping review.PLOS global public health · 2023Article
- Biological Profile and Clinical Features as Determinants for Prolonged Hospitalization in Adult Patients with Measles: A Monocentric Study in Western Romania.Pathogens (Basel, Switzerland) · 2022Article
- Article
- Measles Vaccination and Outbreaks in Croatia from 2001 to 2019; A Comparative Study to Other European Countries.International journal of environmental research and public health · 2022Article
- Vaccinology in pediatric rheumatology: Past, present and future.Frontiers in pediatrics · 2022Review
- Covid-19 pandemic impacts on follow-up of child growth and development.Revista de saude publica · 2022Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundDue 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.
objectiveAnalyze 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.
methodsThe 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.
resultsThere 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).
conclusionA reduction in the number of MMR vaccine doses was evidenced as a possible effect by the restrictive actions of COVID-19 in Brazil.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.