Side Effects of the Feline Leukemia Vaccine

Modified on Nov 05, 2017

Feline Leukemia is a dreaded and serious viral disease. It is contagious, but only from cat to cat. Cats transmit the disease to one another through shared water bowls and litter pans, grooming one another, bites, and mothers can transmit it to their babies. Symptoms of Feline Leukemia include lethargy, swollen lymph nodes, abscesses, diarrhea, fever, and anemia. While there is a vaccine for feline leukemia, mild and serious side effects from the vaccine are not uncommon.

Sometimes, side effects are comparatively mild. Swelling at the site of the vaccination, fever, lethargy and behavior changes are some of the milder reactions.

Reports From Earth Clinic Readers

Joann, from Atlanta, Georgia, reports to Earth Clinic, "My 5 year old cat received a feline leukemia booster yesterday. He was acting himself prior to the vaccine. I did this because I have a rescue cat which may be leukemia positive; because of this I have given boosters to the other cats. This morning, I found him hiding in the closet. He is growling and not very approachable. He will not eat now. I have never seen him like this."

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