Vet Medicine Abbreviations?

Here on PT, we read about sick pets and what medicine they're getting. I sometimes have a hard time understanding all the abbreviations used, so perhaps we could post some of the most commonly used ones and an explanation in this thread? :)

One I do know is: UTI = Urinary tract infection

Thanks in advance! :)

URI = upper respiratory infection (a cold)

FeLV = feline leukemia virus

FIP = feline infectios peritionitis

FIV = feline (equivilant to ) AIDS

Thanks Jen! I didn't know two of those.

Any more folks?