Where Do Most Cases of Rocky Mountain Spotted Fever Occur in the U.S.?
The disease was named Rocky Mountain spotted fever as the disease was first discovered in that part of the U.S., however there are few cases in that part of the country today. Most cases of RMSF in the U.S. occur in the southeastern part of the country, including Delaware, Maryland, Washington D.C., Virginia, West Virginia, North Carolina, South Carolina, Georgia, and Florida. The most cases of RMSF are found in North Carolina and Oklahoma. Other than Antarctica, RMSF can be found in nearly all parts of the world. The disease occurs seasonally, mostly from April through September in the US. While anyone can be infected, children under 10 years of age are at highest risk.