Format

Send to

Choose Destination
Arch Dermatol. 2010 Jun;146(6):641-8. doi: 10.1001/archdermatol.2010.48. Epub 2010 Apr 19.

The expanding spectrum of eschar-associated rickettsioses in the United States.

Author information

1
Dermatology Service, San Antonio Military Medical Center, 2200 Bergquist Dr, Ste 1, Lackland AFB, TX 78236-9908, USA. chad.cragun@us.army.mil

Abstract

BACKGROUND:

Until recently, Rickettsia rickettsii was the only substantiated cause of tick-borne spotted fever group (SFG) rickettsiosis in humans in the United States. Rickettsia parkeri, originally thought to be nonpathogenic in humans, was recently proved to be another cause of tick-borne SFG rickettsiosis.

OBSERVATIONS:

We report 3 cases of SFG rickettsiosis and discuss the epidemiology, clinical presentation, histopathologic features, and laboratory findings that support confirmed or probable diagnoses of R parkeri infection and describe the expanding list of eschar-associated SFG rickettsioses recognized in US patients.

CONCLUSIONS:

The SFG rickettsioses share many clinical manifestations and extensive antigenic cross-reactivity that may hamper specific confirmation of the causative agent.

PMID:
20404224
DOI:
10.1001/archdermatol.2010.48
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Silverchair Information Systems
Loading ...
Support Center