Abstract
From 60 volunteers fed living maggots of Musca domestica, Calliphora, and Sarcophaga, under conditions to avoid their destruction in the stomach, only 10 failed to have symptoms of gastrointestinal disturbance. In 50 cases men had nausea, vomiting, intestinal cramps and diarrhea together or as separate symptoms, but all symptoms disappeared within 48 hrs. following the elimination of the larvae, of which only a few were found alive in the vomitus and stools. These findings seem to indicate that though temporary gastrointestinal distress may follow the ingestion of such dipterous larvae as Musca domestica, Calliphora, and Sarcophaga, they do not produce a true intestinal myiasis in man.

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