Serological survey of Toxoplasma gondii in Tibetan mastiffs ( Canis lupus familiaris ) and yaks ( Bos grunniens ) in Qinghai, China

• Published in: Parasites & Vectors
• Main Authors: Wang Meng, Wang Yan-hua, Ye Qiang, Meng Peng, Yin Hong, Zhang De-lin
• Format: Article in Journal/Newspaper
• Language: English
• Published: BMC 2012
• Subjects: Toxoplasma gondii; Survey; Tibetan mastiff; Yak; IHAT; Infectious and parasitic diseases; RC109-216; Canis lupus
• Online Access: https://doi.org/10.1186/1756-3305-5-35; https://doaj.org/article/8ca8c3b1ae3f45939b60bc9858d7d500

Abstract Background Toxoplasma gondii is an amphixenosis which has extensive hosts. In recent years, the prevalence of T. gondii in China has been reported, while little is known on the survey of T. gondii infection in northwest China, especially in yaks ( Bos grunniens ) and Tibetan mastiffs ( Canis lupus familiaris ). The current study survey the infection of T. gondii in Tibetan mastiffs and yaks in Qinghai Province, China. Methods The indirect hemagglutination test (IHAT) was used to examine T. gondii antibodies in 1 795 serums, including 192 Tibetan mastiffs and 1603 yaks in Qinghai Province, China. Results In this study, the seroprevalence of T. gondii infection was 8.52%. Twenty (10.42%) of 192 serums of Tibetan mastiffs and 133 (8.30%) of 1603 serums of yaks were seropositive. The seroprevalence of T.gondii infection in Tibetan mastiffs in breeding farm (1.08%) was lower than that in the field (19.19%), and the difference was statistically significant ( P <0.05). The seroprevalence of antibodies to T.gondii in yaks ranged from 5.45% to 13.28% among the four different areas. The seroprevalence in different age groups were determined with apparent association. Conclusions The results indicated that T.gondii infection was prevalent in Tibetan mastiffs and yaks, which have implications for public health in this region. To our knowledge, this is the first seroprevalence survey of Tibetan mastiffs infected by T. gondii in The People’s Republic of China.