Feline Infectious Peritonitis (FIP) is spread via Feline Coronavirus (FCoV),a virus endemic to most multi-cat environments. There is a new vaccine for FIP however, statistics are still being gathered on the extent of the protection it provides to cats.

Bordetellabronchiseptica (kennel cough) is a disease first thought to only affect dogsbut recently, laboratories have tested cats and found them to be infectedwith Bordetella.

They have been exposed to so many out of control diseases, since they were never vetted.

I suspect they have/had this too:

Feline Viral Rhinotracheitis (FVR, also known as Feline Herpesvirus) is arespiratory disease caused by Feline Herpesvirus type 1. Symptoms includessneezing, coughing, photosensitivity (where the eyes are sensitive tolight), swelling in the conjunctiva (eyelid tissues) in one or both eyeswith discharge from eyes and nose. Depression and lack of appetite andfevers may be seen. Ulcers of the eye may develop and may lead to severe eye infections or blindness.



Yikes.