Global and regional seroprevalence estimates for human toxocariasis: A call for action

Adv Parasitol. 2020:109:275-290. doi: 10.1016/bs.apar.2020.01.011. Epub 2020 Apr 25.


Human toxocariasis is a parasitic disease transmitted usually from dogs and/or cats that are infected with Toxocara species, and can be associated with a range of allergic, neurological and/or visual disorders. Recent epidemiological research has estimated that ~1.4 billion people worldwide, particularly in subtropical and tropical regions, are infected with, or exposed to Toxocara species, indicating that human toxocariasis is a neglected tropical disease. Here, we review recent research efforts, consider risk factors, discuss limitations in current seroprevalence estimates, and propose some future research directions towards improved awareness, surveillance, prevention and control of this neglected disease.

Keywords: Diagnostic approach; Epidemiology; Global seroprevalence; Human toxocariasis; Toxocara species.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Global Health / statistics & numerical data*
  • Humans
  • Risk Factors
  • Seroepidemiologic Studies
  • Toxocariasis / diagnosis
  • Toxocariasis / epidemiology*
  • Toxocariasis / prevention & control