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).
Vaccines, like any medicine, can have side effects. For most vaccines, serious side effects are extremely rare. The risks of vaccines are much lower than the risks of the diseases they prevent. Different vaccines have different side effects, most of which are mild. They include: 1  temporary pain.2  redness, swelling, or soreness where the shot was given.3  short-lived flu-like symptoms.he risks of vaccines are much lower than the risks of the diseases they prevent. Different vaccines have different side effects, most of which are mild. They include: 1  temporary pain. 2  redness, swelling, or soreness where the shot was given. 3  short-lived flu-like symptoms.