The incubation period of rabies is generally between one to three months, and it is rare for the disease to have incubation period longer than a year. Most cases usually fall within one to three months, according to the 2016 Rabies Prevention Guide. The longest recorded incubation period for rabies mentioned in the guide was six years, but such cases are extremely rare. Therefore, if a person is bitten by a dog and does not develop the disease within a year, it is generally considered that they were not infected with rabies at the time of the bite. Rabies is a fatal disease, with a 100% fatality rate upon infection, so prevention is crucial.