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August 1911


Author Affiliations

From the Laboratories of the Rockefeller Institute for Medical Research.

Am J Dis Child. 1911;II(2):96-101. doi:10.1001/archpedi.1911.04100080033004

Epidemic poliomyelitis has, since its appearance in 1907-08 along the Atlantic seaboard, extended over the entire United States. This wide distribution has fortunately not been attended by a regular and uniform prevalence of the disease in all communities. Indeed, considerable territories would seem to have escaped its ravages, although few, if any, of the states have remained entirely free from invasion. The number of persons attacked can be only conjectured, but it is probable that it reaches into the thousands. The mortality has been the average noted in the European epidemics, and has approached 10 per cent. Undoubtedly the mild or abortive forms of the disease have prevailed along with the severer paralytic types, and in many instances their nature has been certainly overlooked. Among the paralytic cases all grades of the affection have been encountered, and the number of cases in which complete recovery without residual paralysis has taken

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