Comment by sva_
6 hours ago
With rabies I'm not sure it is really control in the sense that it makes the host find victims, but rather that your neurons get damaged in a way that causes immense agitation and the biting is almost a reflex to "defend" yourself as you're incapable of processing what is happening.
Kurzgesagt has a video on it - The Deadliest Virus on Earth https://youtu.be/4u5I8GYB79Y?si=kpoOGGK8YUA-2P5k&t=378 (time coded to 6:18 where it talks about the lack of damage to the brain)
Part of it is that after it does its thing in the brain, it then travels to the salivary glands where it can then spread through a bite.