Is it necessary to give an injection if a vaccinated dog bites someone? How to deal with a dog bite in an emergency?

Jul 26,2025
5Min

Does a vaccinated dog need an injection if it bites a human?

After a vaccinated dog bites a human, the person bitten still needs to be vaccinated against rabies. Dogs’ teeth are very sharp, and even a slight bite will cause scratches. Human mucous membranes will be contaminated by dog ​​saliva. Although the risk of infection for domestic dogs is very small, we must avoid other uncontrollable factors, so we must go to the hospital immediately. Rabies vaccination is administered at the health and epidemic prevention station.

What to do after being bitten by a dog

Wash the bitten skin area with soap and flush it for 15 minutes. After taking these emergency measures, go to the nearest health and epidemic prevention center immediately. Station for vaccination.

Editor’s tip: If the wound does not stop bleeding, there is no need to use a bandage to stop the bleeding and keep the wound open. Then use 2%-3% alcohol for local disinfection. If there is no alcohol disinfection at home, you can go directly to the epidemic prevention station for disinfection.

If you are bitten by a dog, you need to inject immune globulin

If the wound bitten by a dog is too deep or too large, you need to inject serum (immune globulin). The function of serum is to provide passive immunity. Serum is usually injected around the bite wound. After injection, it can quickly neutralize the rabies virus in the body and stimulate the body to produce anti-canine vaccine immunity.

Standards for injection of immunoglobulin

1. The mucous membranes of the eyes, mouth, etc. are damaged, or the damaged areas are licked by dogs.
2. Secondary exposure: The wound did not bleed, but was bitten or scratched by an unknown dog.
3. Level 3 exposure: deep wounds and excessive bleeding.
4. If bitten by a wild dog or a mad dog, it cannot be determined whether the person carries rabies virus.


If you are bitten by a dog, you need to get a rabies vaccine

You need to get a rabies vaccine within 24 hours of being bitten by a dog. You can get the rabies vaccine at a nearby health and epidemic prevention station. Health and epidemic prevention stations are open all year round and are on duty during holidays, so don’t worry about missing the best injection period because no one is at work.

Precautions for rabies vaccine injection

1. After the rabies vaccine injection, four more rabies vaccine injections are required, calculated from the day of injection, 3 days, 7 days, 14 days, and 28 days. Be sure to strictly abide by the injection procedures. If you miss or forget, you must start the rabies vaccine from the beginning.
2. After injecting rabies vaccine, adverse reactions such as induration, itching, and swelling at the injection site may occur, as well as symptoms such as low fever, fatigue, and loss of appetite. These are normal reactions to rabies vaccination and will subside naturally within 24-48 hours. (If you have adverse symptoms for more than 2 days or more, you should be sent to the hospital immediately to consult a doctor.)


How to avoid being bitten by dogs

1. The dog at home should be educated well from an early age. If the dog has the habit of biting people since childhood, it should be punished.Punish the dog and tell it sternly that this is wrong behavior.
2. Wear a leash when walking your dog. If your dog is too wary of strangers, you can wear a muzzle to avoid accidents.
3. If your dog is not friendly to other dogs, try to avoid contact with other dogs when walking, which can reduce the chance of the dog biting people.
4. Do not touch unidentified dogs, stray dogs or mad dogs on the road to prevent the dogs from biting you.
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