![]() Brown dog ticks are found throughout the U.S. rickettsii, causing Rocky Mountain spotted fever, in the southwestern U.S. ![]() The brown dog tick ( Rhipicephalus sanguineus) has recently been identified as a reservoir of R. ![]() In some regions, particularly in the southern U.S., the tick has very different feeding habits that make it an unlikely vector in the spread of human disease. It is important to note that the pathogen that causes Lyme disease is maintained by wild rodent and other small mammal reservoirs, and is not transmitted everywhere that the black-legged tick lives. scapularis larvae and nymphs feed on small mammals and birds, while adults feed on larger mammals and will bite humans on occasion. This tick is widely distributed in the northeastern and upper midwestern United States. The black-legged tick ( Ixodes scapularis), commonly known as a "deer tick", can transmit the organisms responsible for anaplasmosis, babesiosis, and Lyme disease. variabilis, although it feeds readily on other large mammals, including humans. Dogs and medium-sized mammals are the preferred hosts of adult D. variabilis larvae and nymphs feed on small rodents. This tick is widely distributed east of the Rocky Mountains and also occurs in limited areas on the Pacific Coast. The American dog tick can also transmit tularemia. Tickborne diseases cannot be spread by person-to-person contact.Īmerican dog tick ( Dermacentor variabilis) is the most commonly identified species responsible for transmitting Rickettsia rickettsii, which causes Rocky Mountain spotted fever in humans. So see your doctor immediately if you have been bitten by a tick and experience any of the symptoms described here. However, early recognition and treatment of the infection decrease the risk of serious complications. Although easily treated with antibiotics, these diseases can be difficult for physicians to diagnose. Tickborne diseases can result in mild symptoms treatable at home to severe infections requiring hospitalization. Rash: Lyme disease, southern tick-associated rash illness (STARI), Rocky Mountain spotted fever (RMSF), ehrlichiosis, and tularemia can result in distinctive rashes.The severity and time of onset of these symptoms can depend on the disease and the patient's personal tolerance level. ![]() With Lyme disease, you may also experience joint pain.
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