First report on ovine toxoplasmosis in Bosnia and Herzegovina A case study from Srednja-Bosna Canton
Abstract
Toxoplasma gondii is a major foodborne zoonotic parasite, with sheep meat identified as a high-risk transmission vehicle to humans. This preliminary study aimed to determine the seroprevalence of T. gondii in sheep intended for human consumption in Bosnia and Herzegovina. Liver samples from 250 sheep were collected at slaughterhouse located in Canton Sarajevo and tested for anti-T. gondii IgG antibodies using an indirect ELISA on meat juice. An exceptionally high seroprevalence of 98.8% was detected, one of the highest rates reported globally. The near-universal exposure suggests widespread environmental contamination and intense infection pressure in the studied region. Given the strong epidemiological link between undercooked mutton and human toxoplasmosis, these findings indicate a significant public health risk. Effective mitigation should focus on consumer education about safe meat preparation and the adoption of integrated One Health strategies to reduce transmission at the animal-human interface.