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September 29, 1928


JAMA. 1928;91(13):974-975. doi:10.1001/jama.1928.02700130052019

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Infectious Diseases  An interesting experiment has been performed by MM. A. Pettit, G. Stefanopoulo and V. Frasey, who have succeeded in obtaining "anti-yellow fever" serum through the medium of monkeys and horses. This serum neutralizes the amarillic virus in vitro. The active virus mixture and the antiamarillic serum can be inoculated with impunity in Macacus rhesus, a species of monkeys that is known to be sensitive to yellow fever. The authors are carrying on experimental treatment of monkeys.Trial treatment in experimental trypanosomiasis has been carried on of late by MM. L. Nattan-Larrier and P. Lépine. These authors have shown that animals treated previously with sodium arsanilate combined with tetanus anatoxin seem to present a greater resistance to trypanosomiasis than those treated with sodium arsanilate alone. The tetanus anatoxin strengthens the curative properties of sodium arsanilate. This is particularly marked when it is injected at the same time as the

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