[1] In the past, rickettsioses were considered to be caused by species of Rickettsia.
[citation needed] Examples of rickettsioses include typhus, both endemic and epidemic, Rocky Mountain spotted fever, and Rickettsialpox.
[citation needed] Organisms involved include Rickettsia parkeri.
[5] No rapid laboratory tests are available to diagnose rickettsial diseases early in the course of illness, and serologic assays usually take 10–12 days to become positive.
Research is indicating that swabs of eschars may be used for molecular detection of rickettsial infections.