First of all, bathing is an irritation to the dog and may cause the dog to get sick; you should wait 3-7 days before vaccination.
Secondly, bathing can easily cause dogs to catch a cold and even induce respiratory diseases. Vaccination can not go with any diseases. If dogs are vaccinated, they can easily lead to immune failure and even cause severe clinical diseases.
In addition, dogs are not allowed to take a bath during the vaccination period. wokeepet recommended taking a bath after seven days.