Some vaccinations may need to be mixed before injection into the cat. Kittens must be over 12 weeks old at the time of the second vaccination. We took her to a vet and they found nothing it could be. Puppies are vulnerable to serious diseases like parvovirus and canine distemper. Vaccination after pregnancy is especially important if moms did not receive certain vaccines before or during pregnancy. Some of the most common mild side effects seen after immunization include: If any of these signs lasts more than 24 hours or if your pet appears extremely uncomfortable, notify your veterinarian. According to VCA Hospitals, cats will often hide signs of their illness, so sometimes, the signs that a cat is sick are subtle. Some of the chronic disorders suspected of being the result of overvaccination include lupus, pemphigus, rheumatoid arthritis, and autoimmune platelet and red blood cell disorders. A number of studies have demonstrated adverse reactions in pets after administering vaccines to both dogs and cats. A sore arm after any vaccination is common, and the pain comes from the muscle where the injection was given. Kittens should start getting vaccinations when they are 6 to 8 weeks old until they are about 16 weeks old. This means the neck should always be avoided. It is not uncommon at all that kittens/cats are lethargic and lose their appetite after vaccinations. It's fine as a one-off, but it…, Most cats will pester owners for food and treats throughout the day. Flu vaccines causes antibodies (cells responsible to fight off an infection) to develop in the body about two weeks after you get the shot. Older cats have weaker immune systems and are more prone to illness. I'm Richard, the lead writer for Senior Cat Wellness. Then they must be boostered a year latyer.. Puppies and kittens may be tired, lethargic or have a mild fever after their first inoculations. This tumor would need to be removed as quickly as possible if it happens. What does a vaccine reaction look like? Controversy. There’s a booster in about one year, after which it may be given annually or every three years, depending on vaccine type. Around that time I began noticing scabs on her back/rump area and when I went in for her booster shot two weeks ago the vet said they were hives. If elective surgery and anaesthesia are to be postponed after vaccination, some guidelines recommend waiting for 1 week after receiving an inactive vaccine and for 3 weeks after receiving a live attenuated viral vaccine in children. A day or two—at most—of a little discomfort is a small price to pay for helping prevent getting sick with the flu. The shots come in a series every 3 to 4 weeks. My cat was the same. Cats have small bodies and few fat reserves to sustain them. Rarely does a pet need veterinary medical attention for these normal, minor side effects. Some experts believe that the felines already have tumors. With the MMR and chickenpox shots, fever and rash can occur. This will naturally make them more lethargic. It’s extremely rare, but it does happen. As with any medical intervention, there are always some inherent risks associated with vaccinating cats. Anaphylaxis. Severe allergic reactions are very rare, but can occur with any vaccine. Adult cats need shots less often, usually every year or every 3 years, depending on how long a vaccine is designed to last. The NHS Direct number has been replaced with 111. This is similar to human babies who often are cranky, lethargic, and even feverish after vaccines. The cat vaccination schedule for rabies depends on the vaccine used, but all of them begin no earlier than 12 weeks of age. If you have any questions or concerns, please discuss them with your veterinarian. Musculoskeletal problems. every year after she got her booster shots she was very lethargic for a couple of days afterwards, it was almost like she had the flu. A vet will offer many essential vaccinations for your cat. If a cat eats too quickly, it risks regurgitating undigested food. Cats that have this vaccination often experience stiffening joints. Kittens should have their first set of vaccinations at nine weeks old and at three months old they should receive the second set to boost their immune system. Check the status of your state using this table compiled by the American Veterinary Medical Association. Some streaming from the eyes and nose may also follow. Which shots they need. Immune suppression that may last for up to seven days can also occur after vaccination. It’s natural for a cat to become listless and sleepy after vaccines are administered. After that, annual booster vaccinations are needed to maintain your dog’s immunity. 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