Ticks are transmitters of tick fever. Of the many tick fevers, Rocky Mountain spotted fever, Colorado tick fever and relapsing fever are the most commonly contracted.
Rocky Mountain spotted fever is the most dangerous of all tick fevers. If not treated appropriately and promptly, it can prove fatal. Signs of Rocky Mountain spotted fever are commonly confused for flu symptoms. The American dog tick, the brown dog tick, the lone star tick, the Rocky Mountain wood tick, and the Pacific Coast tick are capable of transmitting Rocky Mountain spotted fever.
Relapsing fever is a continuous fever that disappears and reemerges at a later time. Although relapsing fever may also cause death, serious cases are rare.
Colorado tick fever is found in the western United States. Fevers associated with Colorado tick fever may relapse in a similar manner to those experienced by victims of relapsing fever.