Tickpedia
Pathogen · taxon

Babesia microti

Malaria-like protozoan that infects red blood cells; the dominant cause of human babesiosis in the northeastern and upper-midwest US.

Detected · 245 countiesCarried by 1 tickCauses 1 disease

Where it's been detected

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Alaska — no detections on recordAKMaine — 16 countiesMEVermont — 11 countiesVTNew Hampshire — 10 countiesNHWashington — no detections on recordWAIdaho — no detections on recordIDMontana — no detections on recordMTNorth Dakota — no detections on recordNDMinnesota — 20 countiesMNWisconsin — 22 countiesWIMichigan — 1 countyMINew York — 52 countiesNYMassachusetts — 4 countiesMAOregon — no detections on recordORNevada — no detections on recordNVWyoming — no detections on recordWYSouth Dakota — no detections on recordSDIowa — 1 countyIAIllinois — 5 countiesILIndiana — 1 countyINOhio — 1 countyOHPennsylvania — 63 countiesPANew Jersey — 20 countiesNJConnecticut — 8 countiesCTCalifornia — no detections on recordCAUtah — no detections on recordUTColorado — no detections on recordCONebraska — no detections on recordNEMissouri — no detections on recordMOKentucky — no detections on recordKYWest Virginia — 1 countyWVVirginia — 2 countiesVAMaryland — 3 countiesMDDelaware — 3 countiesDERhode Island — 1 countyRIArizona — no detections on recordAZNew Mexico — no detections on recordNMKansas — no detections on recordKSArkansas — no detections on recordARTennessee — no detections on recordTNNorth Carolina — no detections on recordNCSouth Carolina — no detections on recordSCDistrict of Columbia — no detections on recordDCHawaii — no detections on recordHIOklahoma — no detections on recordOKLouisiana — no detections on recordLAMississippi — no detections on recordMSAlabama — no detections on recordALGeorgia — no detections on recordGATexas — no detections on recordTXFlorida — no detections on recordFLCOUNTIES · PER STATE
none
most counties

Detected in 245 counties across 20 states.

Top 8 states
#NameCounties
1Pennsylvania63
2New York52
3Wisconsin22
4Minnesota20
5New Jersey20
6Maine16
7Vermont11
8New Hampshire10

Ticks that carry it

1 known
TickScientific nameOne-liner
Blacklegged tickIxodes scapularisThe black-legged tick is the primary US vector of Lyme disease, established across the Northeast, Upper Midwest, and Mid-Atlantic.

Diseases it causes

1 known
DiseaseOne-liner
BabesiosisBabesiosis is a malaria-like parasitic infection of red blood cells (Babesia microti) carried by black-legged ticks in the Northeast and Upper Midwest.

Risk maps

H3 hexagon heatmap · per disease