Word: humanus
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Dates: during 1998-1998
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...just in Gaithersburg. Pediculus humanus capitis, the human head louse, is back in alarming numbers in school systems from New York to California. The epidemic had nearly been stemmed decades ago by a generation of chemical shampoos and rinses, but now the insect appears to be backed by a force more powerful than any shampoo: evolution...