A normal blood cell is round and almost donut-like in shape. Sickle cells are hard, rigid, and shaped in a curve.
Car accidents,suicidal thought,death from intoxication,become addicted to drinking,become bully's from the effects of intoxication.
The answer would be Latent content.
Latent content expresses the real meaning behind the imagery you see in dreams. It illustrates one's unconscious desires, drives and thoughts. In other words, latent content is the psychological meaning of your dreams.
If you were to differentiate it with manifest content, the manifest content is more about what you see on the surface. The actual images that you see and not the meaning behind it.
So again, the answer is latent content.
Chimpanzees. they held the virus and their exposed blood gave it to humans