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RECENT DATA ON TRICHINAE IN NECROPSY MATERIAL

JAMA. 1943;123(13):839. doi:10.1001/jama.1943.02840480039014.
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During the past several years a survey of trichina infection in necropsy material obtained from hospitals throughout the United States has been conducted in the laboratories of the United States Public Health Service. A recently published summary1 of the general results provides a wealth of data on some aspects of the trichinosis problem in this country. Examination of the muscle of diaphragms with the aid of the dissecting microscope or with the help of the Baermann apparatus after enzymatic digestion revealed that 1 in 6 of the more than 5,000 specimens studied was positive for Trichinella spiralis. The sampling of the necropsy material employed in this investigation was such that the results provide a reasonably accurate index for the entire country. The residences of persons represented in the survey included forty-one states and the District of Columbia, both urban and rural. Necropsy material from people in states in which

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