Symptoms and reactions that kittens will experience after receiving the first injection of vaccine:

1. The cat may lick and bite continuously due to pain at the injection site. At the same time, he refuses the owner's touch and is unwilling to let the owner get close to him.

2. Cats may be depressed, unwilling to move or eat. Some cats may also have a low fever, which will usually return to normal in about a day or two.

3. A small bump may appear at the injection site of the cat, which will usually disappear on its own after two or three days. If the hair follicles are damaged during the injection, it may also cause local hair loss.

4. Cats may have some stress reactions due to fear, such as drooling, panting, etc. Owners can use soothing essential oils or anti-stress powder for cats.

5. Cats may have vaccine allergic reactions, such as itching all over the body, redness and swelling of the face and eyes, convulsions, etc. The owner must take the cat to the hospital for desensitization shots in time.