If a cat gets feline distemper after receiving the first dose of vaccine, it may be caused by the vaccine having not yet produced antibodies in the body or a fake vaccine. When a cat has just received the vaccine, its resistance will decrease, and there is no antibody produced in the body. , so it is easy to be infected with viruses such as cat plague.
Tips:
It is best to choose a regular hospital to vaccinate your cat to avoid buying fake vaccines, and the cat must be fully vaccinated Afterwards, an antibody test needs to be done. If there are no antibodies, a follow-up test will be required.