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September 28, 1979

Medical News

JAMA. 1979;242(13):1343-1351. doi:10.1001/jama.1979.03300130003001

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Rising number of man's best friends ups human toxocariasis incidence  Toxocariasis is hardly a household word in this country, but it's destined to become one of the better-known zoonoses.In the latest report on this growing problem, two researchers told an American Veterinary Medical Association meeting in Seattle that toxocaral infection in humans is more frequent and can have more serious consequences than was previously believed. In fact, say Peter M. Schantz, VMD, PhD, and Lawrence T. Glickman, VMD, DPH, toxocariasis already may be one of the more common parasitic infections in the United States.One factor in this public health problem is a dog population that now may have reached 80 million in this country. The infection rate of Toxocara canis is more than 50% in puppies and around 20% in older dogs.The parasite's eggs are transferred with dog feces to soil, sandboxes, and other points of