eli5 how rabies moves down to the salivary glands and why it does it

Question

Nsfw in case. The title says it all

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Answer 1

Rabies is a really interesting virus, and likes to move along nerves. From the site of infection, it travels up the nerve and settles in the brain.

From there, it will travel down the salivary nerves (the ones that ennervate salivary glands) and end up in the saliva.