Hyperendemicity of cysticercosis in Madagascar: Novel insights from school children population-based antigen prevalence study

PLoS One. 2021 Oct 1;16(10):e0258035. doi: 10.1371/journal.pone.0258035. eCollection 2021.

Abstract

Objective: Taenia solium (Ts) cysticercosis is a neglected zoonotic disease particularly prevalent in Madagascar. Few data are available for children, current data mainly rely on antibody prevalence. We sought to determine the Ts-antigen seroprevalence-determining active cysticercosis-amongst school children from various cities in Madagascar (excluding the capital) and evaluated associated risk factors.

Methods: In seven cities in Madagascar, the presence of cysticercosis in school children (n = 1751) was investigated in 2007 using the B158/B60 antigen (Ag)-ELISA.

Results: The overall prevalence based on Ag detection was 27.7% [95%CI: 10-37%]. Risk factors associated with Ag positivity were age, biotope, altitude and annual average rainfall.

Conclusion: These results highlight the high prevalence of active cysticercosis in Madagascar among school children in an urban setting. This high prevalence as well as the risk factors unraveled point to the emergency to implement appropriate Public Health measure son a national scale.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Animals
  • Antibodies, Helminth / blood*
  • Child
  • Child, Preschool
  • Cities
  • Cross-Sectional Studies
  • Cysticercosis / epidemiology*
  • Female
  • Humans
  • Madagascar / epidemiology
  • Male
  • Prevalence
  • Risk Factors
  • Schools
  • Seroepidemiologic Studies

Substances

  • Antibodies, Helminth

Grants and funding

Pasteur Institute of Madagascar provided the human ressources, the laboratory equipments and provided the lab disposables. Reagents were provided by ITM, Antwerp. No specific fundings were received for this study.