Feline Leukemia Virus

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FeLV Risk Factors


Sick cats are four times more likely than healthy cats to be infected with FeLV. Researchers estimate that about 50% of cats with severe bacterial infections, and 75% of cats with toxoplasmosis, a protozoan disease, also have FeLV infections.

Males are 1.7 times more likely to be infected than females, and younger cats are more susceptible to infection than older cats. FeLV is found mostly in cats from 1 to 6 years old; the average age is 3 years.

Outdoor cats a...Read the full article