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Rickettsialpox in Adult
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Rickettsialpox in Adult

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Contributors: Edith Lederman MD, Noah Craft MD, PhD
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Synopsis

Rickettsialpox is a febrile, infectious disease caused by Rickettsia akari, which is transmitted to humans by the painless bite of mouse mites.

The disease has been identified in urban areas of the United States as well as South Korea, South Africa, and parts of Russia.

The bite follows a 10- to 24-day incubation period, after which an eschar at the site of the mite bite appears (1 of 7 patients will have multiple eschars), followed by fever, nontender regional lymphadenopathy, headache, photophobia, and anorexia 2 to 7 days later. The clinical course of the disease lasts 2 to 3 weeks and is generally self-limited. A persistent headache and lassitude can last for weeks following the acute illness. No deaths clearly attributable to rickettsialpox have been reported to date.

Codes

ICD10CM:
A79.1 – Rickettsialpox due to Rickettsia akari

SNOMEDCT:
75096007 – Rickettsialpox

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Last Updated: 10/03/2017
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Rickettsialpox in Adult
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Rickettsialpox : Fever, Headache, Bite or trauma site, Eschar, Mouse exposure, Smooth papules
Clinical image of Rickettsialpox
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