Vaccine: X (Apr 2022)

Impact of COVID-19 pandemic on vaccination against meningococcal C infection in Brazil

  • Thales Philipe Rodrigues da Silva,
  • Leyla Gabriela Verner Amaral Brandão,
  • Ed Wilson Rodrigues Vieira,
  • Thalita Beatriz Santos Maciel,
  • Tércia Moreira Ribeiro da Silva,
  • Bianca Maria Oliveira Luvisaro,
  • Fabiana Ramos de Menezes,
  • Fernanda Penido Matozinhos

Journal volume & issue
Vol. 10
p. 100156

Abstract

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Objective: Analyzing the impact of COVID-19 pandemic on meningococcal C conjugate vaccination in Brazil. Methods: Ecological study, based on interrupted time series, carried out with data collected through the Information System of the National Immunization Program (IS-NIP). Collected data refer to the number of meningococcal C conjugate vaccine doses administered from March 2019 to December 2020. Results: In total, 14,832,054 meningococcal C conjugate vaccine doses were administered throughout the investigated period; 66.30% of them, from March 2019 to February 2020 and 33.70%, from March to December 2020. Statistically significant steps were observed, i.e., the COVID-19 pandemic had negative impact on the number of MenC vaccine doses administered in the North and South regions (26,98% and 41.47%, respectively) and in the eleven Brazilian States. Conclusion: The current study has shown that the COVID-19 pandemic had negative impact on the number of MenC vaccine doses administered in the Northern and Southern Brazil, and in eleven Brazilian states. Among all challenges experienced during the COVID-19 pandemic, one finds reduced MenC vaccine coverage, which, consequently, may lead to increased meningococcal infection rates in Brazil.

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