Israel D Parker

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An endogenous pyrogen smaller in molecular size than that previously obtained from human white cells has been found in supernatants of these cells after uptake of zymosan and incubation for 18 h. The new pyrogen after separation from other pyrogens which are produced at the same time has been found to produce fever in mice but not in rabbits. Because it is(More)
Chagas disease, also known as American trypanosomiasis, is caused by the flagellate protozoan Trypanosoma cruzi. It is a significant health concern in South and Central America, where millions of people are infected or at risk of infection, and is an emerging health concern in the US. The occurrence of Chagas disease in natural environments is supported by(More)
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