This is the classical appearance of the trichiura egg. The eggs are highly infectious. After a person eats contaminated food the worms hatch from the eggs and live in the intestine causing vomiting and diarrhea. The worms are called whipworms. (Courtesy of the Centers for Disease Control.)

Acquired Date: 1/1/1997 12:00:00 AM Acquired From: Mosby Publishing Company

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