INCUBATION PERIOD

           

            The usual incubation period is 2-8 weeks. It can be as long as a year or several years depending on the severity of the wounds, site of the wound as distance from the brain, amount of virus introduced and protection provided by clothing.

PERIOD OF COMMUNICABILITY

            In dogs and cats, for 3 to 10 days before onset of clinical signs (rarely over 3 days) and throughout the duration of the disease.

SUSCEPTIBILITY AND RESISTANCE

            All warm-blooded mammals are susceptible. Natural immunity in man is unknown.