CLINICAL trichinosis is not common in the United States, even though trichinae are found in the diaphragm (muscle) of about 16% of bodies coming to autopsy. Between 1842 and 1943, over 12,000 clinical cases were reported in the United States.* The discrepancy between the large number of persons infected and the small number of persons that are diagnosed as having trichinosis can be attributed, in part, to a "dilution factor" by which infected meat is diluted with uninfected meat in modern packing plants.
The consumer who prepares his own pork is, of course, not protected by this dilution factor. The outbreak reported here is such an instance. This outbreak illustrates several diagnostic factors that are worth reporting.
F. H., a farmer, resided in rural Virginia, a few miles from the District of Columbia. He lived in a community consisting of 21 persons occupying four houses. Customarily hogs are slaughtered
FREEMAN LC, BRADY FJ, KESSLER AD, SCOTT RB. OBSERVATIONS ON TRICHINOSISReport of a Community Outbreak. AMA Am J Dis Child. 1955;89(2):194–198. doi:10.1001/archpedi.1955.02050110236009
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