Rabies virus can not survive for three days outside the body, rabies virus is relatively easy to be inactivated, can not exist for a long time outside the body, usually infected by the sick animal bites the human body, usually not through the respiratory tract and other ways to spread. Rabies belongs to the genus of rabies virus in the family of elastoviruses, elastic in shape, helically symmetric nucleocapsid, with an envelope on the surface, containing single-stranded RNA, neurotoxicity, easy to be inactivated by sunlight, ultraviolet light, formaldehyde, ether, neoformaldehyde, 50% to 70% alcohol, iodine, and potassium permanganate, and can be inactivated by heating at 56 degrees Celsius for 30 to 60 minutes, or 100 degrees Celsius for 2 minutes. Rabies virus is mainly infected through broken skin and mucous membranes. Bites from rabies-infected dogs, cats and bats can lead to rabies infection and rabies. Rabies is generally not transmitted through respiratory tract, digestive tract, close contact and other channels. If you are bitten by a dog or cat, go to the hospital in time to avoid delays.