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An epidemiological evaluation of COVID-19 in La paz, Bolivia

Ryota Ito1, Masayuki Maeda2, Yumiko Takehara3

  • 1Faculty of Foreign Studies, Department of Spanish & Latin American Studies, Nanzan University, Aichi, Japan.

Journal of Infection and Chemotherapy : Official Journal of the Japan Society of Chemotherapy
|December 28, 2022
PubMed

Insights

COVID-19 prevalence in La Paz, Bolivia, was significantly higher than official reports, with over 63% of residents affected. Vaccination proved highly effective in reducing COVID-19 onset and mortality risk.

Area of Science:

  • Epidemiology
  • Public Health
  • Infectious Diseases

Background:

  • Bolivia has faced four major waves of COVID-19.
  • Accurate COVID-19 epidemiology in Bolivia is poorly defined, hindering pandemic forecasting.
  • Community-level prevalence, determinants, and vaccine effectiveness require investigation.

Purpose of the Study:

  • To examine the community-level prevalence of COVID-19 in La Paz, Bolivia.
  • To identify determinants of COVID-19 occurrence.
  • To assess the effectiveness of COVID-19 vaccination.

Main Methods:

  • A cross-sectional study was conducted in La Paz city.
  • Data were collected from 2,775 individuals between March 2020 and February 2022.
  • A structured questionnaire gathered information on COVID-19 morbidity, mortality, and vaccination status.

Main Results:

  • The COVID-19 infection prevalence was 57.1%, with an additional 6.7% suspected cases, totaling 63.8%.
  • The mortality rate was 2.9%.
  • Vaccination significantly reduced the risk of COVID-19 onset and mortality (OR 0.037, p<0.001).

Conclusions:

  • Actual COVID-19 prevalence in La Paz (63.8%) far exceeded official figures (7.5%).
  • Vaccination played a crucial role in controlling the COVID-19 epidemic in Bolivia.
  • Findings can inform future COVID-19 prevention strategies in Bolivia.
Abstract

Keywords:
BoliviaCOVID-19EpidemiologyLa pazSARS-CoV-2

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