Rudy is a typical young neutered male Abyssinian ‍cat. He is very active, curious, and social. His owner became concerned one evening because Rudy was repeatedly vomiting and having projectile vomiting. My clinic was closed, so Rudy went to one of the local emergency clinics. Rudy had a fever and was very depressed. X-rays did not conclusively show anything, but as with any young ‍cat, the emergency vet was concerned [...]