Because of the habit of keeping dogs around the world, among animals, dogs have the closest contact with people. Coupled with the mobility of dogs, but also has a bite behavior characteristics, so dogs have become the main link in the rabies epidemic. According to statistics, the proportion of people bitten by various animals suffering from rabies is: 80.07% of dog bites, 9.25% of cat bites, 0.64% of wolf bites, 0.03% of fox bites, and 0.64% of farm animal bites. Dogs account for the highest percentage of these cases, so they are the most important source of infection. The virus in the salivary glands of sick animals invades the human body with bites and scratches on human mucous membranes and skin, proliferates in local muscle cells, goes upstream to the central nervous system with blood flow, and after proliferation in nerve cells, can reach salivary glands and other tissues. The incubation period varies depending on the location and extent of the bite, with up to 30 years reported, but generally one to three months. At the beginning of the disease, the wound has a feeling of ants, followed by headache, lacrimation, salivation, nausea, vomiting and other symptoms, showing increased nervous excitement, swallowing laryngeal spasm, see the wind and water more harmful, so called hydrophobia. Rabies is transmitted in 3 main ways 1. Infected by dogs or other animals that bite or scratch the skin or are licked by their mucous membranes. Rabies virus invades the nerves through wounds and mucous membranes and develops. This is the main mode of transmission. 2. Infection develops from inadvertent stabbing of the hand during slaughter or skinning. 3. Infection through the digestive tract. Animals that die of rabies are buried in the ground, frozen in winter, picked up by wild dogs or other animals, eat the meat and become infected with rabies.