Dogs themselves are omnivorous animals, especially wild dogs or free-range dogs, there are more bacteria in the mouth, the meat bitten by the dog is recommended not to eat again. Scientists have found that there are nearly four hundred kinds of bacteria in the dog’s mouth, and only the bacteria that have been known to be able to name, there may also be lurking in the dog’s mouth, the dog’s feces are prone to a variety of bacteria, parasites, and gastroenteritis viruses, toxoplasma gondii, and so on. Therefore, humans may also be infected by bacteria from cats and dogs. If the meat has been bitten by a dog, it may contain various bacteria in the dog’s mouth, so it is better to throw it away. Once bitten by a dog, it is necessary to treat the wound first, and then go to the hospital for surgical treatment, which can further minimize the harm. In addition, the patient also need to timely injection of rabies vaccine, if necessary, need to be injected at the same time rabies immunoglobulin.