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December 4, 1943


Author Affiliations


From the Lois Grunow Memorial Clinic.

JAMA. 1943;123(14):887-889. doi:10.1001/jama.1943.02840490015005

In spite of the fact that Pediculoides ventricosus is an apparently widespread habitant of the United States, a review of the literature reveals but little concerning this obnoxious mite. In fact, aside from a report1 of several cases in 1933, a report on harvest itch in Europe2 and Grove's3 study on hypersensitivity to P. ventricosus, it was necessary to go back to 19091910, when original investigation was done to find case reports in American medical literature. Therefore most accounts, including treatment and prophylaxis found in the modern textbook, are taken from these original articles.

The disease seems to be fairly common in certain farming districts of the United States, but since it responds rapidly to simple remedies it would appear that many cases are never diagnosed, the cause being attributed to some form of allergy or to mosquito or other insect bites. The epidemic reported in this