It is transmitted to humans by the bite of an infected American dog tick and frequently by other tick species. In the eastern United States, children are infected most frequently, while in the western United States, adult males are the most likely to get the disease. The chance of getting RMSF is directly related to exposure to tick-infested habitats or to infested pets. It cannot be spread from one person to another. The rash begins on the legs or arms, may include the soles of the feet or palms of the hands and may spread rapidly to the trunk or rest of the body.
Symptoms usually appear within two weeks of the bite of an infected tick.
Yes, a person who gets RMSF probably cannot get it again. Certain antibiotics such as tetracycline or chloramphenicol may be effective in treating the disease. As much as possible, avoid areas where ticks are found, such as woods or fields with tall grass. Tick repellents applied to legs and clothing may be helpful to prevent tick attachment. Be sure to follow label instructions before using any repellent.