Vaccines are available for a number of important infectious diseases in cats. It is generally recommended that all cats be vaccinated against the viruses causing cat flu, panleukopenia virus (or feline parvovirus), and rabies (in countries where this is a problem) due to the severity and/or frequency of infection with these viruses. It is commonly recommended that all kittens also receive vaccination against feline leukaemia virus. Other vaccines are also available, but their use will depend on the lifestyle and risks of the individual cat. Latest guidance for kitten vaccines recommends three vaccines, every 2-4 weeks, starting at 8-9 weeks of age through until 16-20 weeks of age with the first adult booster at 6 months (24weeks).