The Weird Reason Rabies Is So Deadly
Rabies is known as one of the deadliest diseases around, but it doesn't actually want to kill its host. Instead, rabies has a clever strategy to ensure it spreads. Most germs make their hosts sick in ways that encourage coughing, sneezing, or other behaviors that help them spread. Rabies, however, takes a different route by changing the behavior of its host. It spreads through saliva, and once it gets inside a new animal, it travels through the nerves instead of the bloodstream. This slow journey helps the virus avoid detection by the immune system, eventually reaching the brain.
Once in the brain, rabies affects how brain cells communicate, making the host less fearful and more aggressive. This change makes it more likely for the host to bite another animal, spreading the virus further. While animals like dogs and bats may act aggressively when infected, humans typically don’t bite, making them a dead-end for the virus.
The clever way rabies manipulates the brain leads to serious problems for the infected host. The brain controls essential functions like breathing and movement, and when rabies disrupts these signals, the host's body can fail, leading to death. However, there’s hope! If someone receives a rabies vaccine soon after exposure, their body can learn to fight the virus before it takes full control. In essence, the key to surviving rabies lies in taking action before the virus can take over.
The Weird Reason Rabies Is So Deadly with tags minuteearth, minute earth, minutephysics, minute physics, earth, history, science, environment, environmental science, earth science, biology, epidemiology, rabies, virus, nervous system, disease, brain, death, vaccine
Rabies is the one of the deadliest diseases we know of; if you don’t get treatment soon after getting exposed, you’re almost certain to die. But rabies’ intent isn’t actually to kill – it's to control.
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To learn more about this topic, start your googling with these keywords:
- Neurotropic: infects nerve tissue
- Post-exposure prophylaxis (PEP): preventative medical treatment started after exposure to a pathogen
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