Feline infectious peritonitis (FIP) is a fatal, incurable disease that affects cats.It is caused by Feline Infectious Peritonitis Virus (FIPV), which is a mutation of Feline Enteric Coronavirus (FECV) - (Feline coronavirus FCoV).Experts do not agree on the specifics of genetic changes that produce the FIPV.t is caused by Feline Infectious Peritonitis Virus (FIPV), which is a mutation of Feline Enteric Coronavirus (FECV) - (Feline coronavirus FCoV).
Some people get mild cases of only a few days, o â¦ thers get severe cases of a few weeks or more and are hospitalized. On average, the symptoms of the flu generally last 3 - 10 days but the H1N1/09 virus lasts more typically 4 - 7, although a cough and fatigue may persist for up to 2 weeks.
It is also possible for vaccine strain influenza to be transmitted by persons, who have recently received live attenuated influenza virus nasal vaccines. Vaccine strain viruses can be shed in body fluids for seven or more days after administration of live attenuated virus vaccines. Symptoms of influenza include fever, chills, headache, sore throat, runny or stuffy nose, coughing, sneezing, and sometimes vomiting and diarrhea.