Prevalence of infection in household and feral cats in Korea.

This study was designed to investigate the prevalence rate of () infection in household cats in Korea. One hundred household cats and 50 feral cats from nine of the largest cities in Korea were enrolled in this study. The tests performed in this survey was an in-house rapid screen IgG and IgM combo test, faecal PCR test for oocysts, and an ELISA immunoassay for IgG antibodies. There were no household cats positive for infection detected using the in-house IgG and IgM rapid screen combo test, although 6/50 and 0/50 feral cats were positive in IgG and IgM tests, respectively. This initial finding was confirmed by subsequent ELISA test for IgG antibody and PCR for in faeces. Despite the higher prevalence rate of the disease in feral cats in Korea, we did not find any household cats that were either infected or exposed previously to in our study population. Our study indicates that there is minimal risk of transmission from household cats to human in Korea.