Generally speaking, the first dose of vaccine for puppies is 45 days old, and then one dose every 21 days. When dogs are older than 3 months old, they also need to be vaccinated against rabies virus. This vaccine is a compulsory vaccination and is mainly used to prevent rabies, a zoonotic disease. In addition, owners need to pay attention to keeping their dogs in good health before injecting vaccines. If their dogs are sick, they must be treated first, and then consider vaccination after their condition stabilizes.

Precautions for puppy vaccination:

1. During the dog vaccination period, the dog food and feeding environment cannot be changed, and the dog needs to be kept warm. Prevent your dog from getting stressed or getting cold, which may endanger your dog's health.

2. When injecting dogs with vaccinations, you must choose regular drugs. At the same time, vaccinations must be carried out under the advice of veterinarians. Only injecting dogs regularly according to the efficacy of the medicine is effective.

3. After the dog is vaccinated, it must stay in the hospital for observation for 30 minutes. If there are no problems, it can leave.