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Article
October 5, 1907

THE STUDY OF TROPICAL DISEASES.

JAMA. 1907;XLIX(14):1192. doi:10.1001/jama.1907.02530140038009

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Abstract

Through the report of the Surgeon-General of the Army, referred to editorially elsewhere, we learn that the Army Board for the Study of Tropical Diseases has been actively at work during the year. The first original discovery made by the board was that of a new blood parasite, which was designated Filaria philippinensis. This new filaria, while so far as known not pathogenic, is of interest as being of common occurrence among natives of the Philippine Islands. Its presence in the mosquito, Culex fatigans, as well as its life history in that insect, has been demonstrated. The board has also investigated the prevalence of Entamœba coli among healthy American soldiers and has found it among a very large percentage, and demonstrated its continued presence in the intestine for long periods without producing symptoms. The board concludes that Entamœba dysenteriœ may be readily distinguished morphologically from Entamœba coli and is uniformly

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