Impact of a twelve-year rotavirus vaccine program on acute diarrhea mortality and hospitalization in Brazil

Myrela Conceição Santos De Jesus, Victor Santana Santos, Luciane Moreno Storti-Melo, Carlos Dornels Freire De Souza, Íkaro Daniel De Carvalho Barreto, Marcelo Vitor Costa Paes, Pablo Amércio Silva Lima, Anna Klara Bohland, Eitan N. Berezin, Ricardo Luiz Dantas Machado, Luis Cuevas, Ricardo Queiroz Gurgel

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Background

Monitoring the impact of vaccine programs is necessary to identify changes in vaccine efficacy. We report the impact of the 12-year rotavirus vaccine program on diarrhea mortality and hospitalizations and their correlation to socioeconomic indicators.

Methods

this ecological study describes diarrhea hospitalizations and deaths from 2006 to 2018 in Brazil and correlates rotavirus vaccine coverage, hospitalizations and deaths to socioeconomic indicators and social vulnerability index (SVI) by state and region. Hospitalizations, deaths, and vaccine coverage trends were analyzed using Joinpoint regression models. Associations between hospitalizations, mortality and rotavirus vaccination coverage and socioeconomic and SVI indicators were established using Ordinary Least Square regressions.

Results

Rotavirus vaccine coverage remained stable between 2006 and 2018 (annual percentage changes (APC) [95%CI]: 4.4% [−0.3%, 9.2%]). Diarrhea hospitalization rates decreased 52.5% (−5.7% [−7.5%, −3.8%]), from 68.4 to 32.5 hospitalizations per 10,000 children <5 years-old between 2006 and 2018, with significant decreases in diarrhea mortality (−9.8% [−11.2%, −8.5%]). The Northeast region experienced the largest reductions (−13.9% [−15.7%, −12.2%]). Vaccination coverage and diarrhea-mortality were inversely correlated with the SVI.

Conclusion

The burden of childhood diarrhea has decreased over an extended period. States with high SVI, but high vaccination coverage had the largest reductions in hospitalizations and deaths.

Original languageEnglish
Pages (from-to)585-593
Number of pages9
JournalExpert Review of Vaccines
Volume19
Issue number6
Early online date16 Jun 2020
DOIs
Publication statusPublished - 30 Jun 2020

Keywords

  • Acute diarrhea
  • Brazil
  • hospitalization
  • mortality
  • rotavirus
  • rotavirus vaccine

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