Horses are the victims of a botfly that lays its eggs on their legs, and sheep are the prey of another kind of botfly that lays its eggs in their noses. The eggs hatch into maggots which mature in the animals' bodies causing severe illness and sometimes death. So far, the U.S. has been spared the activities of yet another botfly, still more repulsive, that makes man its unwilling and miserable host. But in this week's A.M.A. Journal, a Florida doctor reports that the U.S. has just had a narrow escape from being...
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