I have great pleasure in being able to record for the last year a general and perhaps unparalleled advance in our knowledge regarding tropical diseases.
The discovery of at least one mode of infection in yellow fever—a discovery of the highest importance to mankind— emanates from America. For some time past several of our American colleagues, stimulated by recent observations in connection with malaria, have sought an experimental verification of the hypothesis of Finlay and others, that yellow fever also is communicated by the bite of gnats. Insects fed on patients were subsequently induced to bite healthy persons who volunteered for the experiment. The results were negative until the gnats were kept for an interval of twelve or more days between the two operations. Success was now immediate. Drs. Reed, Carroll and Agramontc record in their last report that out of seven non-immune persons subjected by them to
ROSS R. TROPICAL DISEASES. JAMA. 1901;XXXVII(7):450–451. doi:10.1001/jama.1901.62470330032001i
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