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 are more likely to be infected with FeLV. Less than 1% of healthy indoor cats in the United States are infected with FeLV, compared to 1% to 2% of healthy outdoor cats, and more than 13% of sick stray cats. FeLV is more common in multicat households than in single-cat households, especially when cats go outdoors.
Veterinarian-developed and -monitored.
Original Date of Publication: 01 Mar 2001
Reviewed by: Under Construction
Last Reviewed:
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