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Reports of Lyme Disease in West Virginia

Browse Lyme data by state
2000–2020
Confirmed cases

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    6,644

    Confirmed cases of Lyme disease in West Virginia (2000 to 2020).

    Yearly Breakdown

    Confirmed cases reported to the CDC each year.
    View as a table
    Confirmed Lyme disease cases in West Virginia by year
    Year Confirmed cases
    2000 35
    2001 16
    2002 26
    2003 31
    2004 38
    2005 61
    2006 28
    2007 84
    2008 135
    2009 201
    2010 145
    2011 118
    2012 97
    2013 143
    2014 136
    2015 289
    2016 368
    2017 648
    2018 671
    2019 1,258
    2020 2,116

    West Virginia's Counties

    Confirmed Lyme disease cases by county in West Virginia, 2000 to 2020
    County Confirmed cases Share of state
    Berkeley County 800 12.0%
    Jefferson County 435 6.5%
    Morgan County 259 3.9%
    Hancock County 250 3.8%
    Hampshire County 241 3.6%
    Monongalia County 196 3.0%
    Cabell County 181 2.7%
    Kanawha County 164 2.5%
    Upshur County 142 2.1%
    Mineral County 122 1.8%
    Harrison County 120 1.8%
    Ohio County 108 1.6%
    Marshall County 100 1.5%
    Brooke County 92 1.4%
    Preston County 88 1.3%
    Monroe County 82 1.2%
    Greenbrier County 76 1.1%
    Wood County 74 1.1%
    Barbour County 71 1.1%
    Wetzel County 60 0.9%
    Lewis County 59 0.9%
    Marion County 59 0.9%
    Mercer County 59 0.9%
    Raleigh County 52 0.8%
    Randolph County 43 0.6%
    Hardy County 37 0.6%
    Pocahontas County 34 0.5%
    Taylor County 34 0.5%
    Roane County 31 0.5%
    Calhoun County 29 0.4%
    Mingo County 27 0.4%
    Grant County 26 0.4%
    Braxton County 25 0.4%
    Fayette County 24 0.4%
    Webster County 24 0.4%
    Pendleton County 22 0.3%
    Pleasants County 21 0.3%
    Tucker County 21 0.3%
    Putnam County 18 0.3%
    Boone County 16 0.2%
    Gilmer County 16 0.2%
    Clay County 15 0.2%
    Summers County 15 0.2%
    Doddridge County 13 0.2%
    Ritchie County 13 0.2%
    Nicholas County 12 0.2%
    Tyler County 11 0.2%
    McDowell County 8 0.1%
    Jackson County 7 0.1%
    Mason County 7 0.1%
    Wayne County 7 0.1%
    Lincoln County 5 0.1%
    Wyoming County 5 0.1%
    Wirt County 3 0.0%
    Logan County 2 0.0%
    Unknown County 2,183 32.9%

    "Unknown County" counts cases the CDC confirmed in West Virginia without a county of residence. They are included in the state total but not on the map.

    Data Sources

    All Lyme disease prevalence data sourced from the Centers for Disease Control and Prevention's surveillance data. Cases are counted by the patient's county of residence, which may not be where the tick bite occurred.

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