Merck Manual

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Prevention and Control of Feline Leukemia Virus

Prevention and Control of Feline Leukemia Virus

Testing should be done in the following situations:

  • All kittens at their first veterinary visit

  • All cats prior to entering a household with existing uninfected cats

  • All cats in an existing household prior to admission of a new, uninfected cat

  • All cats prior to their first feline leukemia virus vaccination

Vaccines are recommended only for uninfected cats at risk.