Rocky Mountain spotted fever

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Rocky Mountain spotted fever

A rare acquired life-threatening infectious disease due to the tick-borne bacteria Rickettsia rickettsii characterized by an acute onset of fever malaise and severe headache variably accompanied by myalgia anorexia nausea vomiting abdominal pain and photophobia associating (2-5 days after fever onset) a typically erythematous blanching or non-blanching maculopapluar rash with petechiae starting on the wrists and ankles and progressing centrifugally to the palms and soles and centripetally to the arms legs and trunk. Additonal variable features may include conjunctivitis mucosal ulcers post-inflammatory hyperpigmentation jaundice pneumonia hepatomegaly renal failure meningismus amnesia optic disc edema and ocular arterial occlusion.

Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview.

Reference: Access aggregated data from Orphanet at Orphadata.

Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version February 2024

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Rocky Mountain spotted fever?

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Clinical Trials

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