How long is it before rabies contagious?

The exact time frame for when rabies becomes contagious can vary depending on the specific case and the strain of the rabies virus. However, generally speaking, the virus is not considered contagious during the incubation period, which can range from a few days to several months. During this time, the virus is replicating and spreading within the host's nervous system, but it has not yet reached the salivary glands or other parts of the body from which it can be transmitted to others. Rabies is typically transmitted through the saliva of an infected animal, so it is not considered contagious until the virus is present in the saliva. Once the virus reaches the salivary glands and the host begins shedding the virus in their saliva, they are considered contagious and can transmit the virus to others through bites or contact with open wounds or mucous membranes.