Felis ISSN 2398-2950

Feline Leukaemia Virus (FeLV) Owner Factsheet

Feline Leukaemia virus (FeLV) is probably the most important virus in cats. About one in three cats that come into contact with the virus develop a permanent infection which is almost always fatal. FeLV infection causes a wide range of symptoms and by weakening their immune defences it can also make cats more susceptible to other infections. The effects of the virus on the immune system are similar to those that occur in humans with AIDS, but FeLV only affects cats. It cannot affect humans or other animals, such as dogs.

How is the disease passed on?

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Will my cat catch FeLV?

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What does FeLV do?

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Can you tell if a cat is infected before it becomes ill?

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Can FeLV be treated?

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Are FeLV vaccinations dangerous?

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My cat has tested positive for FeLV - what do I do?

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When is it safe to get a new kitten?

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