What is a vaccine?
A vaccine is made up of all or part of a disease-causing bacteria or virus, and causes the body to produce its own defence system to fight infection. When a vaccine is given to a person or an animal, the body’s immune system makes defence cells and antibodies specific for whatever disease the vaccine is protecting against. The defence cells and antibodies are then “stored” for future use to protect against illness when exposure to that disease occurs.
Why are animals vaccinated?
For the same reasons, humans are! Vaccines keep animals healthy, protect animal welfare, prevent disease and reduce the need for antibiotics. Vaccinating animals also prevents the spread of certain diseases from humans to animals.