The items bitten by dogs may have viruses, and will mostly contain bacteria, viruses, parasites and other harmful pathogenic microorganisms in the dog’s mouth, especially in wild dogs or free-range dogs. Scientists have found that there are about nearly 400 species of bacteria in the dog’s mouth, these are among the bacteria that are already known and named, and there are some unknown bacteria that lurk in the dog’s mouth. In addition, dogs also have the habit of eating poop and have the habit of licking each other’s anus, and there may be bacteria, viruses, parasites, and gastroenteritis viruses and toxoplasma inside the feces. Especially when walking a dog, you can find dogs biting things everywhere, which greatly increases the probability of the presence of bacteria and parasites in the dog’s mouth, so humans can also be infected by bacteria from cats and dogs, and dog bites can exist in various pathogenic microorganisms. If a person is bitten by a dog, you need to promptly squeeze the wound, squeeze out the blood near the wound, and then promptly disinfect the wound with iodophor or alcohol, etc., and quickly go to the hospital after a simple bandage.