The tales of neurological parasites.
and starts chowing down on juicy brain matter. As the amoeba divides, multiplies and moves inward, devouring brain cells as it goes, its hosts can go from uncomfortable to incoherent to unconscious in a matter of hours.
infections are rare in the extreme — worldwide historical totals number only in the hundreds — they’re almost always fatal, and tricky to catch and treat before they spiral out of control. Even so, you’d be wise to avoid warm pools of still water, lest you end up with an uninvited guest on the brain.We’ve all been warned to stay clear of wild cats and dogs, and never to bother animals we find wandering the streets of a city.
that churn out thousands of copies of the virus. As the attackers grow in number, they make their way to the host’s central nervous system, and head for the brain.the hippocampus, amygdala and hypothalamus, brain structures that play central roles in memory, fear and emotion. And they don’t just devour brain cells indiscriminately, either; instead, they alter the ways these cells release neurotransmitters like serotonin, GABA, and endogenous opioids.
In the altered states brought on by a rabies infection, animals often lash out at any nearby living thing, but this may be more out of fear than anger. Human rabies patients becomeIf the infection goes untreated, rabies patients fall deeper into confusion and hallucination, lashing out at imagined threats and hapless bystanders. They lose their ability to sleep, sweat profusely, and finally fall into a paralyzed stupor as their brain function slips into chaos.
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