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Eschar-associated Rickettsioses
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June 29, 2018
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Description:An eschar is a lesion that occurs at the site of a tick or mite bite. The eschar forms within a few days (median 5 days) after the bite, and may take several weeks to heal completely. Early eschars can look like small vesicles or like an erythematous plaque (Figure 1A). Eventually, most eschars will develop into a central, 0.5–3.0 cm ulcer. This ulcer is covered by a brown-black crust and typically is surround- ed by an annular red halo (Figure 1B). The healed lesion typically appears as a small depressed scar (Figure 1C).
CS294259 June 29, 2018
Eschar-associated-Rickettsioses-508.pdf
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