The guinea-worm, Dracunculus medinensis, has been reported from man in North America in a total of ten published cases. In four of the cases, D. medinensis was collected from persons who had been abroad in countries in which guinea-worm is known to be endemic and who either certainly or possibly became infested while abroad. In six other cases the evidence published in connection with the cases indicates that the supposed D. medinensis was actually something else. The net result of a consideration of the published literature is a total lack of human cases that can be accepted as originating in the United States.
The four cases of D. medinensis infestation reported from the United States with evidence that the infestation was or might have been acquired abroad, are as follows:
Severance1 reported a case in a white sailor who had been in Mogador, Morocco, six years previously. The worm
CHITWOOD BG. DOES THE GUINEA-WORM OCCUR IN NORTH AMERICA?. JAMA. 1933;100(11):802–804. doi:10.1001/jama.1933.02740110014005
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