Feline vaccination is the administration of antigenic material (the vaccine) in cats to produce immunity to a feline disease. Vaccines can prevent or ameliorate the effects of infection by a pathogen. Currently, there are geographically defined core vaccines and individually chosen non-core vaccine recommendations for cats. In many areas, the core vaccines consist of a single combined FVRCP vaccine shot which protects against FVR (FHV-1), FCV and FPV. Most vaccination protocols recommend a series of vaccines for kittens, with vaccine boosters given at one year of age. Frequency of vaccination thereafter varies with exposure risk, the disease and vaccine type. Most vaccines are given by subcutaneous (under the skin) or intramuscular (into the muscle) injection. Respiratory tract disease vac