Pet dogs should not be vaccinated. Dogs need to go out frequently to increase their activity, so they are more likely to be infected by germs. If the dog is not vaccinated, it can easily cause the dog to get sick, and in severe cases, the dog can die. It is generally recommended that dogs be vaccinated against infectious diseases when they are 45 days old. The first vaccination requires 3 injections, with an interval of 21 days between each injection. Dogs over 3 months old can be vaccinated against rabies, but they cannot be vaccinated in advance.

Notes on dogs not being vaccinated:

1. Dogs in their early years need to be vaccinated with three doses of infectious disease vaccine and one shot of rabies vaccine. Dogs need to be vaccinated against infectious diseases and rabies every year.

2. You must go to a regular animal hospital to get vaccinated by a professional veterinarian, so as to ensure the effectiveness of the vaccine.

3. The dog should stay in the hospital for observation for 30 minutes after the injection. If the dog shows symptoms of edema, rash, or difficulty breathing, the doctor should be notified in time to receive an anti-allergic injection.