"Closantel, an older drug used to treat a parasitic liver disease in animals, may prove effective at combating river blindness in humans, a major cause of infection-related blindness, U.S. researchers said on Monday," Reuters reports (Steenhuysen, 2/8). "People contract river blindness, also known as onchocerciasis, when bitten by black flies that carry a nematode known as Onchocerca volvulus," ScienceNow reports. "The worm larvae mature and mate, producing up to 1000 'microfillariae' offspring per day, which migrate to the surface of the skin and to the eyes...
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