By injecting dead cells of the disease into the body, the body can analysis what it is supposed to be fighting off before it gets the active diseases. So if the body does actually get the disease then it knows how to fight it off and can have a better chance at doing it.
Answer:Prion diseases occur when normal prion protein, found on the surface of many cells, becomes abnormal and clump in the brain, causing brain damage. This abnormal accumulation of protein in the brain can cause memory impairment, personality changes, and difficulties with movement.
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Subject, ocaution, aduience, and purpose <span />
A phobia is an intense fear of something that, in reality, poses little or no actual danger. Common phobias and fears include closed-in places, heights, highway driving, flying insects, snakes, and needles. However, you can develop phobias of virtually anything.
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A Phobia is an irrational fear of something that's unlikely to cause harm. The word itself comes from the Greek word“phobos,” which means “fear” or “horror.” Hydrophobia, for example, literally translates to fear of water. When someone has a phobia, they experience intense fear of a certain object or situation.