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August 9, 1947


JAMA. 1947;134(15):1261. doi:10.1001/jama.1947.02880320051018

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To the Editor:—  There is a growing feeling among physicians in certain quarters that susceptibility to poliomyelitis is increased during pregnancy. The experience in Florida during the 1946 outbreak, in which 572 cases were reported, possibly may be of interest.Eight cases occurred among pregnant women, all of whom were in the second and third trimester. In this group there were two deaths, one of which was the only case in a pregnant Negro woman. Of the 6 remaining patients, 1 was in a respirator for a long time. Five women resided in Key West, which had a total of 45 cases with an attack rate of 2 per thousand. Four of the women in Key West were wives of navy personnel. Investigation in that city revealed no specific factors to explain the large number of pregnant women affected.On the other hand, there were 78 cases of poliomyelitis among

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