![]() Additionally, a similar virus has been described in Saudi Arabia (Alkhurma hemorrhagic fever virus). Kyasanur forest disease is found in southern India and is typically associated with exposure to ticks while harvesting forest products.In the U.S., the most frequently diagnosed rickettsial infection associated with international travel is caused by Rickettsia africae (the agent of African spotted fever). Imported tickborne spotted fevers (rickettsial infections) have caused infection in returning travelers.Crimean-Congo hemorrhagic fever is found in Eastern Europe, particularly in the former Soviet Union in northwestern China central Asia southern Europe Africa the Middle East and the Indian subcontinent.This list shows the most common tickborne diseases outside the United States, but does not list every disease. This is a new disease that has been found in California. 364D rickettsiosis ( Rickettsia phillipi, proposed) is transmitted to humans by the Pacific Coast tick ( Dermacentor occidentalis ticks).Tularemia is transmitted to humans by the dog tick ( Dermacentor variabilis), the wood tick ( Dermacentor andersoni), and the lone star tick ( Amblyomma americanum).TBRF has been reported in 15 states: Arizona, California, Colorado, Idaho, Kansas, Montana, Nevada, New Mexico, Ohio, Oklahoma, Oregon, Texas, Utah, Washington, and Wyoming and is associated with sleeping in rustic cabins and vacation homes. Tickborne relapsing fever (TBRF) is transmitted to humans through the bite of infected soft ticks.STARI (Southern tick-associated rash illness) is transmitted via bites from the lone star tick ( Ambylomma americanum), found in the southeastern and eastern U.S.The brown dog tick and other tick species are associated with RMSF in Central and South America. Rocky Mountain spotted fever (RMSF) is transmitted by the American dog tick ( Dermacentor variabilis), Rocky Mountain wood tick ( Dermacentor andersoni), and the brown dog tick ( Rhipicephalus sangunineus) in the U.S.Rickettsia parkeri rickettsiosis is transmitted to humans by the Gulf Coast tick ( Amblyomma maculatum).Cases have been reported primarily from northeastern states and the Great Lakes region. Powassan disease is transmitted by the blacklegged tick ( Ixodes scapularis) and the groundhog tick ( Ixodes cookei).and the western blacklegged tick ( Ixodes pacificus) along the Pacific coast. Lyme disease is transmitted by the blacklegged tick ( Ixodes scapularis) in the northeastern U.S.It is unknown if the virus may be found in other areas of the U.S. Studies suggest that Lone Star ticks can transmit the virus. Heartland virus cases have been identified in the Midwestern and southern United States.Ehrlichiosis is transmitted to humans by the lone star tick ( Ambylomma americanum), found primarily in the southcentral and eastern U.S.It occurs in the the Rocky Mountain states at elevations of 4,000 to 10,500 feet. Colorado tick fever is caused by a virus transmitted by the Rocky Mountain wood tick (Dermacentor andersoni).At this time, we do not know if the virus might be found in other areas of the United States. Bourbon virus infection has been identified in a limited number patients in the Midwest and southern United States. ![]() It is transmitted by the blacklegged tick ( Ixodes scapularis) and has a range similar to that of Lyme disease. Borrelia miyamotoi infection has recently been described as a cause of illness in the U.S.burgdorferi known to cause Lyme disease in North America. Borrelia mayonii is a new species and is the only species besides B. It has been found in blacklegged ticks ( Ixodes scapularis) in Minnesota and Wisconsin. Borrelia mayonii infection has recently been described as a cause of illness in the upper midwestern United States.Babesia microti is transmitted by the blacklegged tick ( Ixodes scapularis) and is found primarily in the northeast and upper midwest. Most human cases of babesiosis in the U.S. Babesiosis is caused by microscopic parasites that infect red blood cells.Anaplasmosis is transmitted to humans by tick bites primarily from the blacklegged tick ( Ixodes scapularis) in the northeastern and upper midwestern U.S.In the United States, some ticks carry pathogens that can cause human disease, including:
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