Dog rabies is spread through infection. Dogs will be infected if they come into contact with saliva containing the virus. Some dogs are born with rabies virus. When the dog is injured and licks the wound, it will cause a rabies attack. It is also possible that the dog does not have rabies but is bitten by another animal with rabies and becomes infected. The mortality rate of rabies is 100%. As long as you are infected, you will die, so you should be vaccinated in advance to prevent infection.