Methods to determine whether cat vaccines are ineffective:

1. Look at the production date and expiration date.
2. Check whether the medicinal powder or liquid changes color, shape, or taste.

3. You can look at the powder package in the vaccine. When you get the vaccine normally, the powder will be in a lumpy state, and the lumps can shake up and down. This means that the vaccine can be used normally. When the vaccine powder spreads, it means it has expired.

4. Check whether the storage temperature and humidity of the vaccine are inconsistent with the instructions.

What to pay attention to when vaccinating cats:

1. After the cat is vaccinated, the cat may have a swollen head, a swollen face, and a small red rash on the body. Wait for allergy symptoms, so after the cat is vaccinated, the owner needs to wait for half an hour to observe the cat before leaving.

2. After cats are vaccinated, they should pay attention to preventing illness, keep warm, and supplement nutrition appropriately.

3. Be careful not to take a bath after the cat is vaccinated. It takes about 7 days after the vaccine is injected to produce a certain amount of antibodies. During this period, the cat’s resistance is weak and it is easy to catch cold and get sick while bathing.