The phrase "peritonitis virus" refers to a virus that causes inflammation in the peritoneum, which is the lining of the abdomen. Peritonitis is a serious condition that can be caused by various factors, including viral infections. Full definition
We do not carry or recommend the Feline Infectious Peritonitis Virus Vaccine. (aroundtownvet.com)
Caused by feline infection peritonitis virus (FIPV), it is a mutation of feline enteric coronavirus (FECV) and is more likely to occur in environments where large groups of cats are together, such as animal shelters. (15thstvet.com)
Takano T, Azuma N, Satoh M, Toda A, Hashida Y, Satoh R, Hohdatsu T. 2009 Neutrophil survival factors (TNF - alpha, GM - CSF, and G - CSF) produced by macrophages in cats infected with feline infectious peritonitis virus contribute to the pathogenesis of granulomatous lesions. (catvirus.com)