The susceptibility of animals to rabies virus varies a great deal and depends on factors such as:

• the animal species
• its genetic make-up
• he age of the animal
• the virus strain (biotype)
• the virus dose
• the route of exposure.

For example, a deep, heavily contaminated wound in the head region in a young animal is more likely to lead to disease, with a shorter incubation period, than an older animal with a superficial wound on the extremities.



The incubation period

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