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Related Experiment Videos

Francisco Canto-Osorio1, Dalia Stern2, Carolina Pérez-Ferrer3

  • 1Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México.. ofranciscocanto@gmail.com.

Salud Publica De Mexico
|January 31, 2022
PubMed
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This summary is machine-generated.

The SARS-CoV-2 seroprevalence in Mexican school-aged children was 18.7% for basic education and 26.7% for middle education. Most infections in basic education were asymptomatic, indicating a low overall infection rate.

Area of Science:

  • Epidemiology
  • Public Health
  • Infectious Diseases

Background:

  • The COVID-19 pandemic necessitated understanding SARS-CoV-2 transmission dynamics in various populations.
  • School-aged children represent a significant demographic group with unique exposure and transmission patterns.
  • Data on SARS-CoV-2 seroprevalence among children in Mexico was limited prior to this study.

Purpose of the Study:

  • To estimate the seroprevalence of SARS-CoV-2 in school-aged children and adolescents in Mexico.
  • To determine the proportion of asymptomatic SARS-CoV-2 infections within this population.
  • To analyze seroprevalence based on educational level.

Main Methods:

  • Utilized data from the 2020 National Survey of Health and Nutrition on COVID-19 (Ensanut 2020 Covid-19).

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  • Categorized participants by school age and educational level (basic and middle education).
  • Employed a log-binomial regression model to estimate prevalence ratios and identify asymptomatic infections.

    • Main Results:

    • Overall SARS-CoV-2 seroprevalence was 18.7% (95% CI: 14.9, 22.5) in basic education and 26.7% (95% CI: 22.1, 31.3) in middle education.
    • Asymptomatic SARS-CoV-2 infections were highly prevalent, particularly in basic education (88.5%; 95% CI: 80.5, 93.5).
    • Higher seroprevalence was observed in the middle education group compared to the basic education group.

    Conclusions:

    • SARS-CoV-2 infection rates in Mexican school-aged children in basic education are relatively low.
    • The majority of SARS-CoV-2 infections in this demographic are asymptomatic.
    • Findings highlight the importance of considering asymptomatic transmission in school settings.