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Updated: Sep 16, 2025

Breakfast Habits among Schoolchildren in the City of Uruguaiana, Brazil
06:48

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Published on: July 29, 2020

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Duration of COVID-19 symptoms in children: a longitudinal study in a Rio de Janeiro favela, Brazil

Fernanda Esthefane Garrides Oliveira1, Leonardo Bastos2, Raquel de Vasconcellos Carvalhães de Oliveira3

  • 1Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil fergarrides@gmail.com.

BMJ Open
|July 7, 2025
PubMed

Insights

Children infected with SARS-CoV-2 in Brazil experienced longer COVID-19 recovery times than reported elsewhere. Persistent symptoms were observed in 9.5% of pediatric cases, highlighting socioeconomic context impacts.

Area of Science:

  • Pediatric infectious diseases
  • Epidemiology
  • Public health

Background:

  • COVID-19 duration in children varies, with some facing prolonged recovery.
  • Understanding pediatric SARS-CoV-2 recovery is crucial, especially in vulnerable communities.

Purpose of the Study:

  • To investigate the time to symptom resolution after SARS-CoV-2 infection in Brazilian children.
  • To identify factors influencing recovery duration in a community setting.

Main Methods:

  • Prospective community-based cohort study in Rio de Janeiro, Brazil.
  • Follow-up via home visits and telephone monitoring of 253 SARS-CoV-2 positive children (aged 2-14).
  • Recovery time analyzed using Kaplan-Meier curves.

Main Results:

  • Median recovery time was 11 days (IQR: 7-16 days).
  • Two inflection points at 16 and 34 days indicated prolonged symptom duration.
  • Children infected during the Omicron wave and boys showed varied recovery patterns; 9.5% had symptoms >33 days.

Conclusions:

  • Pediatric COVID-19 recovery in this vulnerable Brazilian setting was longer than in other countries.
  • Socioeconomic factors likely influence recovery dynamics.
  • Findings are vital for understanding pediatric COVID-19 in community contexts.
Abstract

Keywords:
COVID-19Community child healthPaediatric infectious disease & immunisationPublic health

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