The virus lies dormant in the nerves for a period of time that varies from a few days to months. This is called the incubation period. If treatment is sought immediately and received during the incubation period, recovery is likely. The incubation period in humans averages 60 days.
After the incubation period, the virus travels through the nerves to the brain. This is when symptoms first appear. Death occurs within a few days of the onset of symptoms.