Seroprevalence of Toxoplasma gondii in water buffaloes (Bubalus bubalis) in South-West of Iran.

The prevalence of antibodies to Toxoplasma gondii was conducted in 300 buffaloes from Ahvaz, Kouzestan province, southwest of Iran. Blood sera were screened using a Modified agglutination test (MAT) incorporating 2-mercaptoethanol. Positive reactions in sera dilutions above 1:25 were considered as indicative for the presence of T. gondii antibodies. The overall prevalence of infection in the animals was 14.33% with titers of 1:25 in 21, 1:50 in 12, 1:100 in 6, 1:200 in 2 and 1:400 in 2. The prevalence was different in relation to the sex with buffaloes with 19.7% and 7% in females and males respectively. These results indicate that T. gondii infection in water buffaloes of Khouzestan is relatively high and consumption of buffalo meat may be a risk factor for humans in Ahvaz, southwest of Iran.