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Tickborne Diseases of the United States


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Overview of Tickborne Diseases					minus icon
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			HomeTick IDOverview of Tickborne DiseasesLyme DiseaseTickborne Relapsing Fever (TBRF)Hard Tick Relapsing FeverAnaplasmosisEhrlichiosisRocky Mountain Spotted FeverRickettsia parkeri RickettsiosisTularemiaBabesiosisHeartland and Bourbon Virus DiseasesColorado Tick FeverPowassan Virus DiseaseTickborne Diseases AbroadTick Bites/PreventionLyme Disease Prophylaxis After Tick Bite					Related Pages
										Selected Tickborne Diseases Reported to CDC, U.S., 2018
For information about reporting tickborne disease cases or questions about testing, contact your state or local health department.US map showing where cases of Anaplasmosis have been reported. Cases are concentrated in the Northeastern corner of the U.S.ANAPLASMOSISUS map showing where cases of Babesiosis have been reported. Cases are concentrated in the Northeastern corner of the U.S.BABESIOSIS**NOTE:** Each dot represents one case. Cases are reported from the infected person’s county of residence (where known), not necessarily the place where they were infected. Maps do not include data if county of residence was not reported.
**NOTE:** In 2018, no cases of tickborne illness were reported from Hawaii. In 2018, Alaska reported 8 confirmed travel-related cases of Lyme disease.
**NOTE:** During 2018, babesiosis was reportable in Alabama, Arizona, Arkansas, California, Connecticut, Delaware, District of Columbia, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nebraska, New Hampshire, New Jersey, New York, North Dakota, Ohio, Oregon, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, and Wyoming.US map showing where cases of Ehrlichiosis have been reported. Cases are concentrated in the Eastern half of the U.S.EHRLICHIOSISUS map showing where Lyme disease cases have been reported. Cases are concentrated in the Northeastern corner of the U.S.LYME DISEASEUS map showing where Spotted Fever Rickettsiosis cases have been reported. Cases concentrated in the Eastern half of the USSPOTTED FEVER RICKETTSIOSIS (INCLUDING ROCKY MOUNTAIN SPOTTED FEVER)US map showing where cases of Tularemia have been reported. Cases are concentrated in the middle part of the U.S.TULAREMIA**NOTE:** Anaplasmosis and ehrlichiosis were not reportable in Colorado, Idaho, New Mexico, Alaska, and Hawaii in 2018.
**NOTE:** Spotted fever rickettsiosis was not reportable in Alaska and Hawaii in 2018.Top of Page
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						Page last reviewed:  August 5, 2022					Content source: 	Centers for Disease Control and Prevention, National Center for Emerging and Zoonotic Infectious Diseases (NCEZID), Division of Vector-Borne Diseases (DVBD) homeTickborne Diseases of the United StatesTick IDOverview of Tickborne DiseasesLyme DiseaseTickborne Relapsing Fever (TBRF)Hard Tick Relapsing FeverAnaplasmosisEhrlichiosisRocky Mountain Spotted Fever*Rickettsia parkeri*RickettsiosisTularemiaBabesiosisHeartland and Bourbon Virus DiseasesColorado Tick FeverPowassan Virus DiseaseTickborne Diseases AbroadTick Bites/PreventionLyme Disease Prophylaxis After Tick Bite


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