The bite of the tiny red and black tick injects the bacteria into the blood. A red rash develops, often circular with a bull's-eye appearance, followed by flulike symptoms (fever, headache, and painful joints). Most people are successfully treated with antibiotics. A small number develop chronic disease with neurological problems, memory loss, arthritis, and eye inflammation. Lyme disease is sometimes accompanied by babesiosis or human granulocytic ehrlichiosis , which also infect the deer tick.
See also Rocky Mountain spotted fever .
See P. Murray, The Widening Circle (1996) A. Karlen, Biography of a Germ (2000) J. A. Edlow, Bull's-Eye (2003).
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.
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