Primate Fever and Evolution

[RAMTIN THOMAS RAMSEY]

Non-human Primates have been shown to lack a fever response, but possess an 
acute phase response (i.e. immunological response) to Gram-negative 
infections.  However, as humans and vertebrates down the evolutionary scale 
present themselves with fever during endotoxaemia, and since fever is 
considered a beneficial host response to infection, 

	Question:  Why then is there a break in the evolution of fever in 
			vertebrates, with fever reappearing in humans.


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