File:Erythema migrans.jpg

Erythema_migrans.jpg (200 × 200 pixels, file size: 28 KB, MIME type: image/jpeg)

Summary

Description
English: Erythema migrans (EM) or "bull's-eye" rash

medical illustration of Erythema migrans

   Rash occurs in approximately 70-80% of infected persons1 and begins at the site of a tick bite after a delay of 3-30 days (average is about 7 days).
   Rash gradually expands over a period of several days, and can reach up to 12 inches (30 cm) across. Parts of the rash may clear as it enlarges, resulting in a “bull's-eye” appearance.
   Rash usually feels warm to the touch but is rarely itchy or painful.
EM lesions may appear on any area of the body.
Date
Source Centers for Disease Control and Prevention (NIH)
Author Centers for Disease Control and Prevention (NIH)

Licensing

Public domain
This image is a work of the Centers for Disease Control and Prevention, part of the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain.

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27 September 2010

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