Seroprevalence estimates for toxocariasis in people worldwide
Researchers evaluated five international databases (PubMed, EMBASE, Web of Science, SciELO and Scopus) for seroprevalence studies published from 1 January 1980 to 15 March 2019 for toxocariasis seroprevalence.
The study found identified 250 eligible studies (253 datasets) comprising 265,327 participants in 71 countries for inclusion in the analysis. The estimated global rate was 19.0%.
Seroprevalence was highest in the African region (37.7%) and lowest in the Eastern Mediterranean region (8.2%). A significantly higher T-seroprevalence was associated with a lower income level; lower human development index; lower latitude; higher humidity; higher temperature; and higher precipitation. Potential risk factors associated with seropositivity to Toxocara included male gender; living in a rural area; young age; close contact with dogs, cats or soil; consumption of raw meat; and the drinking of untreated water.
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