Chicken was a 13 year old female domestic short hair cat who was stricken with vaccine associated malignant fibrous histiocytoma. This cancer was a result of either Leukocell 2 (FeLV vaccine) or Defensor 3 (rabies vaccine). Both vaccines are manufactured by Pfizer Animal Health. Nowhere on the product information pages does it warn owners or veterinarians about the possible cancer-related risks. Go ahead. Read it for yourself. You can read about Leukocell 2 here. Apparently Pfizer has removed all information about Defensor 3 from its website. I wonder why?
Please ask questions of your vet BEFORE allowing your cat to be vaccinated. Believe me, Pfizer doesn’t want you to know what can really happen. Neither does Boehringer Ingelheim, Merck, Merial, etc…
This is what VAS (Vaccine Associated Sarcoma) looks like:
Click here to begin reading Chicken’s blog from the beginning!