WHAT IS IT?
Rocky Mountain spotted fever (RMSF) is a bacterial disease transmitted to people by ticks. The bacterium species is Rickettsia rickettsii. The American Dog Tick (Dermacentor variabilis) is a vector for RMSF and is the second most common tick in Georgia. A tick bite is usually painless and about half of the people who develop RMSF do not remember being bitten.