I'm not familiar with how its spread, but Mons would really not have any direct contact with another cat and the judges do spray the table and the cages between cats with a little disinfectant, so things should be ok.
Ok I looked it up:
IS FIP CONTAGIOUS?
Very simply, the answer is no.
SO HOW CAN AN INFECTIOUS DISEASE NOT BE CONTAGIOUS?
Feline Infectious Peritonitis is a reaction to infection with the feline coronavirus. Most cats who become infected with the feline enteric coronavirus (often simply called “feline coronavirus”) essentially get the flu and never develop anything that can in any way be described as serious. Some cats, however, react with this devastating syndrome.
WHAT DO WE KNOW ABOUT THE FELINE ENTERIC CORONAVIRUS?
Here are some basics about this virus:
* It is common wherever cats are housed in groups and it is readily transmitted between cats.
* Transmission is typically by contact with infected feces. This means that the litter box is the usual place where infection takes place. This infection is unusual in cats that free-roam outdoors (no litter box) or who live in homes where there is only one cat. The virus enters the new host’s body via the nose and mouth.
* An active infection lasts several weeks to a few months. Virus is shed in the infected cat’s stool during this period. If the cat is reinfected, virus sheds again for weeks to months. During this time, the cat may or may not seems at all ill. Some infected cats do not shed virus.
* Households with fewer than 5 cats eventually spontaneously clear of coronavirus. Households with more than 5 cats virtually never clear of coronavirus.
* Most household disinfectants readily kill coronavirus immediately. Room temperature kills coronavirus within 48 hours. Carpeting is protective to the virus and the virus is able to survive in carpeting for at least 7 weeks.