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Aspirin can alter the function of the hypothalamus and decrease body temperature when you have a...

Aspirin can alter the function of the hypothalamus and decrease body temperature when you have a fever.

What is the purpose of a fever when you get a bacterial or viral disease? Is a fever good or bad? What effect does a fever have on bacterial/viral infections? Explain.

HINT: What are the optimal conditions for the growth/reproductions of bacterial/viruses that infect humans? Would a fever alter these conditions? If you take aspirin to decrease a fever, would that make the conditions more or less favorable for the bacteria/viruses?

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Answer #1

Fever is good. Fever in response to a bacterial/ viral infection is a first-line immune response to fight against the infection. The optimum temperature for bacteria/viruses to replicate is body temperature (~37ºC). Higher or lower temperatures affect the doubling time of the bacteria/ virus. So, by increasing the body temperature (fever), the infection can be controlled by slowing down the bacterial/ viral replication.

In addition fever, also stimulates the immune cells to act against the infection by promoting the migration of cytotoxic T cells faster in the bloodstream.

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