Bullseye rash linked to Lyme disease

描述：

Description: English: The pathognomonic erythematous rash in the pattern of a bull’s-eye (erythema migrans). The rash manifested at the site of a tick bite, on this Maryland woman’s posterior upper arm, signifying a case of Lyme disease, caused by the bacterium Borrelia burgdorferi, and transmitted to humans, by the bite of infected blacklegged ticks. Date: 31 December 2007. Source: https://phil.cdc.gov/Details.aspx?pid=9874. Author: CDC / James Gathany.