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Article
September 1946

RAT MITE DERMATITIS: Acariasis Caused by the Tropical Rat Mite, Liponyssus Bacoti Hirst

Author Affiliations

WESTFIELD, N. J.

Arch Derm Syphilol. 1946;54(3):278-280. doi:10.1001/archderm.1946.01510380025003
Abstract

IT IS possible that rat mite dermatitis due to Liponyssus Bacoti Hirst is more frequent than the literature indicates. Bishopp,1 Shelmire and Dove2 in Texas, Weber3 in Chicago and C. R. Anderson4 in Los Angeles have reported cases. Because this mite may be the vector of endemic typhus and can become an occupational hazard, recognition of the dermatitis and the mite are important. No report has been made of its occurrence in this part of the United States.

REPORT OF CASES

A woman employed in an electrical industry noticed some small red marks on her arms, neck, abdomen and legs, associated with pruritus. She discontinued work for one week, and the rash and symptoms disappeared. There was an immediate recurrence of the process as soon as she resumed her occupation. Four other employees were similarly affected at the time.

An examination of the working environment

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