Tick-borne illness

Undetermined ehrlichiosis/anaplasmosis

Undetermined ehrlichiosis/anaplasmosis is the CDC reporting category for cases where the specific Ehrlichia or Anaplasma species could not be identified.

Cases · 1,201View risk map →
Continental risk map
Where Undetermined ehrlichiosis/anaplasmosis hits hardest
H3 hexagon heatmap of 1,201 reported cases across 51 states.
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State-by-state cases

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Alaska — no CDC-reported casesAKMaine — 30 casesMEVermont — 32 casesVTNew Hampshire — 7 casesNHWashington — no CDC-reported casesWAIdaho — no CDC-reported casesIDMontana — no CDC-reported casesMTNorth Dakota — 12 casesNDMinnesota — 148 casesMNWisconsin — 361 casesWIMichigan — 3 casesMINew York — 108 casesNYMassachusetts — 6 casesMAOregon — 3 casesORNevada — 1 caseNVWyoming — no CDC-reported casesWYSouth Dakota — no CDC-reported casesSDIowa — 20 casesIAIllinois — 5 casesILIndiana — 118 casesINOhio — 2 casesOHPennsylvania — 63 casesPANew Jersey — 22 casesNJConnecticut — no CDC-reported casesCTCalifornia — 11 casesCAUtah — no CDC-reported casesUTColorado — no CDC-reported casesCONebraska — no CDC-reported casesNEMissouri — 117 casesMOKentucky — 8 casesKYWest Virginia — 3 casesWVVirginia — 24 casesVAMaryland — 5 casesMDDelaware — 1 caseDERhode Island — no CDC-reported casesRIArizona — 2 casesAZNew Mexico — no CDC-reported casesNMKansas — 10 casesKSArkansas — no CDC-reported casesARTennessee — 12 casesTNNorth Carolina — 1 caseNCSouth Carolina — 45 casesSCDistrict of Columbia — 4 casesDCHawaii — no CDC-reported casesHIOklahoma — no CDC-reported casesOKLouisiana — no CDC-reported casesLAMississippi — no CDC-reported casesMSAlabama — 9 casesALGeorgia — 4 casesGATexas — 1 caseTXFlorida — 3 casesFLCASES · PER STATE
none
most cases

1,201 reported cases across 51 states.

Top 8 states
#NameCases
1Wisconsin361
2Minnesota148
3Indiana118
4Missouri117
5New York108
6Pennsylvania63
7South Carolina45
8Vermont32

Monthly breakdown not yet imported for Undetermined ehrlichiosis/anaplasmosis.

Year-over-year

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819614410205020192022REPORTED CASES · PER YEAR

Ticks that carry it

0 known

No ticks linked to Undetermined ehrlichiosis/anaplasmosis in the lens — check the editorial seed.

Pathogens that cause it

0 known

Pathogen association not yet seeded for Undetermined ehrlichiosis/anaplasmosis.

Wild facts

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