File:The American Museum journal (c1900-(1918)) (17972576058).jpg

Title: The American Museum journal
Identifier: americanmuseumjo13amer (find matches)
Year: c1900-(1918) (c190s)
Authors: American Museum of Natural History
Subjects: Natural history
Publisher: New York : American Museum of Natural History
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: Biodiversity Heritage Library

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Side view of house fly from enlarged model made by Mr. Ignaz Matausch. The house fly has not the long biting proboscis characteristic of the stable fly which transmits infantile paralysis. Compare with figure on page 230 by the victims of the disease. In the next year Mr. C. T. Brues, an en- tomologist, was assigned to work with Dr. Sheppard and suspicion began to point strongly toward a particular insect, the biting stable fly. Finally in the summer of 1912 Prof. M. J. Rosenau of the Harvard Medical School com- pleted the chain of proof. No one who was present at the joint session of Sections I and V of the Fifteenth International Congress of Hygiene and Demography on September 26th last will forget that most striking event of the whole Congress, the presentation of these results. Eminent investi- gators from Norway, Sweden and Austria, as well as some of the leading workers in this country, had presented the formal papers of the morning. Much that was important was added but the weight of evidence still seemed to point, though somewhat doubtfully, toward human contact as the chief agent in the transmission of the disease. In the discussion that followed, Dr. Rosenau made a preliminary report of his experiments and announced that he had succeeded in producing poliomyelitis in six out of twelve monkeys bitten by stable flies (Stomoxys calcitrans) which had been allowed to feed on other monkeys suffering from the disease. As a result of his discovery the entire outlook for the control of infant paralysis has been changed. Prof. Rosenau's work has since been confirmed by Drs. Anderson and Frost of the United States Public Health Service. There is of course no certainty that the disease is always transmitted by Stomoxys. The work of Dr. Flexner and of the Swedish observers and the occurrence of a certain proportion of cases in cold weather strongly suggest that sometimes 233

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