The occurrence of Toxoplasma gondii and Neospora caninum as regards meat hygiene

摘要: Toxoplasma gondii and Neospora caninum are phenotypically phylogenetically closely related cyst-forming coccidia, both of which may cause abortion in livestock animals. T. exhibits also zoonotic potential by causing diaplacental infections the human fetus harmful immunosuppressed individuals. Humans get infected either consuming inappropriately prepared cyst-containing meat or ingesting oocysts originating from cat feces. Therefore, order to assess infection risk we need have knowledge on prevalence parasite consumable thus slaughtered So far, no data indicate any for N. caninum. Due its high economic impact bovine production Switzerland, included this present study as well. The species were investigated PCR muscle brain samples bovines, sheep, pigs horses. Comparatively, a serum sample each animal was simultaneously tested serologically Toxoplasma-P30-ELISA Neospora-SA-ELISA. prevalences determined gondii-PCR followings: adult cows 3%, young bulls 2%, prior gravidity 6%, calves 1%, sheep horses 0%. For caninum, PCR-prevalence 2% 0% all other groups. Conversely, seroprevalences much higher groups, with exception fattening pigs. However, principally detectable (cows calves) well meat, consumption harbours humans. In contrast, lack detectability pig horse allows consider source neglectable when compared ovine meat.