Abstract
Toxoplasmosis is a zoonotic infection of animals caused by protozoan parasite Toxoplasma gondii. It has the capacity to infect all warm-blooded animals. Having already been reported in many countries and different climate. This study was undertaken to determine the seroprevalence of T. gondii infection in sheep. A total of 1234 serum samples from sheep were collected from the 18 provinces in north western part of Libya and tested for toxoplasmosis with commercial Eliza test. The overall seroprevalence of toxoplasmosis was 18.1%. Al Zawyah (75%), and Zelitin (62.7%) showed high prevalence followed by Al Khums (29.5%), Al Aziziah (26.5%), Jado (23.7%), Al Jamil (20%), Sabratah (17.1%), Al Assa (17.1%). Other provinces; the seroprevalence rates were ranged from 2.6% up to 12.4%. the highest seroprevalence of ovine toxoplasmosis observed in this study indicated the environmental contamination with infective oocysts. The studies on toxoplasmosis are important with regard to fact that being a zoonosis, infected animals are a potential source of infection to the human.