It is not recommended to give cats vaccinations before they receive any, as their immune systems are relatively weak beforehand. If they are not kept warm or given other necessary care, they may develop health problems. Therefore, it is not advisable to bathe cats before vaccinations, whether it's for a cold or a vaccine. Bathing before vaccinations is not good for cats.

Cats should not be bathed before vaccination. Cats should not be bathed during the vaccination period because their resistance and immunity are relatively low. Antibodies have not yet formed in their bodies. Therefore, if they get chilled or are infected by a virus while bathing, it will directly lead to a cold in the cat and the vaccine will be ineffective. It is recommended that owners bathe their cats 7 days after vaccination.
You shouldn't bathe your cat immediately after vaccinating it. It takes time for antibodies to form in a kitten's body after vaccination, and only then will the kitten have enough strength to fight off external threats.