Feline Leukaemia Virus – infection with this virus is one of the biggest causes of death in young cats, so protection is essential particularly for young cats.
Feline enteritis – another viral infection, with symptoms similar to parvovirus in dogs.
Flu – although rarely fatal, feline flu is a very serious disease that can cause life-long respiratory problems.
Chlamydia – this virus causes conjunctivitis in cats but the vaccine is usually only used by breeders and boarding catteries and is not routinely offered to most cats.