Seroprevalence of Toxoplasma gondii in cats and pigs from Thua Thien Hue Province in Vietnam
2009
Hosono, H., Kyoto Univ. (Japan) | Ito, S. | Kono, H. | Xuan, X.
The traditional small scale pig farmers in Vietnam keep animals in open backyard stalls and usually keep cats to catch rats and mice. Under these conditions, controlling for the exposure of pigs to toxoplasmosis, a significant zoonoses, is difficult. The purpose of this study is to investigate the seroprevalence of Toxoplasma gondii antibodies in domestic cats and pigs in T.T. Hue Province, Vietnam with commercial latex agglutination kits (Eiken-Toxocheck). A total of 155 cat and 260 pig sera samples (110 from a slaughterhouse and 150 from 6 pig farms) were collected in 2007. Among them, 112 (72.3%) cats, 62 (41.3%) live pigs and 76 (69.1%) slaughtered pigs tested positive for T. gondii antibodies (1:64 cut-off). The seroprevalence increases as the pig grows; the seroprevalence of piglets less than 15kg was 16.7% and 71.0% for those over 50kg (OR= 12.26,95% CI=3.31, 45.34). We also have collected sera from the same herds of 6 farmers 2 times with 2 month interval. Of which, the prevalence rate at the first sampling was 28.4% (88 samples) and 2 months later in the 2sup(nd) sampling it was 64.0% (50 samples) (OR=4.48, 95%CI=2.14, 9.39). The results indicate a high prevalence of T. gondii in pigs under the current farming system in T.T. Hue Province, Vietnam.
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