Rocky Mountain Spotted Fever (6514)

Rocky Mountain Spotted Fever
Rocky Mountain Spotted Fever (RMSF) is an infection caused by the bite of an infected tick. It affects about 250 to 1,200 people a year in the US and usually occurs from April until October, but it can occur anytime during the year where weather is warm. The mid-Atlantic and southeastern states are most affected. The disease is spread to humans from contact with the tick; it is not spread from one person to another.

What are the symptoms of Rocky Mountain Spotted Fever?
The following are the most common symptoms of RMSF. However, each person may experience symptoms differently. Symptoms may include:

• a non-itchy rash that usually starts on the hands, arms, feet, and legs and occurs seven to 10 days after the bite
• fever
• headache
• decreased appetite
• chills
• sore throat
• stomach ache
• nausea or vomiting
• diarrhea
• body aches
• sensitivity to light

Death has occurred in untreated cases of RMSF.
Symptoms of RMSF may resemble other conditions or medical problems. Consult a physician for diagnosis.

For more inforation, please see this Ohio State Universtiy Medical Center fact sheet.

Penn State Entomology Dept.

For more information on this subject, Please visit the College of Agricultural Sciences Publications Web site.

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