1 Feline stomatitis is a severe, painful inflammation of a catâs mouth and gums. 2  Dental disease, certain viruses, and some other inflammatory conditions can cause feline stomatitis.  The long-term outcome can vary. Many cats require long-term treatment to control the condition.
Vaccine Adverse Event Reporting System. The Vaccine Adverse Event Reporting System (VAERS) is a United States program for vaccine safety, co-managed by the U.S. Centers for Disease Control and Prevention (CDC) and the Food and Drug Administration (FDA).
Side effects of the MMR vaccine. As there are three separate vaccines within a single injection, different side effects can occur at different times. The side effects of the MMR vaccine are usually mild. It's important to remember that they're milder than the potential complications of measles, mumps and rubella.