The feline calicivirus vaccine lowers FCV illness severity but does not fully block infection. Here is what the calici shot covers, what it misses, and why outbreaks still happen.

Feline calicivirus symptoms include mouth ulcers, drooling and sneezing. Learn the warning signs and when to see a vet in Australia and NZ.

Kittens under six months are the highest-risk group for FIP. Learn the early symptoms, the four forms, and how GS-441524 treatment is calibrated for young cats.