Volume 21, Issue 2
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



A fatal case of indigenously acquired echinococcosis is reported from Herriman, Utah. The patient, an 8-year-old boy, is known to have had contact with animals on his grandfather's ranch, and subsequent studies traced infected sheep back to this ranch, where a dog carrying tapeworms was also identified. Skin-test, serologic, and X-ray studies of almost 400 of the town's 500 inhabitants failed to uncover other human cases, although five skin-test reactions were considered positive. This is the 17th known human case of locally acquired echinococcosis in Utah and the first in which a complete transmission cycle for the disease was identified.


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