Prevalence of IgM and IgG positive cats in Los Angeles County, California.

Objectives: The objective of this study was to determine the prevalence of IgM and IgG positive cats in Los Angeles County, California. antibodies are common in sera from cats in most reported studies around the world. Although the majority of infected cats never develop clinical disease, development of acute infection and recrudescence of latent infection secondary to immunosuppression has been reported.