Deer disease,
state by state.
Chronic Wasting Disease (CWD) and Epizootic Hemorrhagic Disease (EHD) are the two diseases most likely to affect a deer hunter's season. They behave very differently — CWD is a slow-moving prion disease that persists once established; EHD is an annual viral outbreak driven by midges and weather. Pick a state for current status, county-level detections where seeded, transport rules, and testing information.
Disease status changes — new state-level CWD detections are announced periodically, and EHD activity varies year to year. This page summarizes broadly-reported public information for hunter awareness only. Cross-reference state wildlife agency pages and the USDA APHIS distribution map for current data.
State-level status
Confirmed wild or captive detection on agency record.
No own detection on record; borders a positive state.
Agency reports no detections to date.
Limited public data available.
CWD-positive states
- ALAlabamaCWD PositiveEHD: Occasional
- ARArkansasCWD PositiveEHD: Occasional
- COColoradoCWD PositiveEHD: Occasional
- FLFloridaCWD PositiveEHD: Occasional
- IDIdahoCWD PositiveEHD: Rare
- ILIllinoisCWD PositiveEHD: Frequent
- IAIowaCWD PositiveEHD: Frequent
- KSKansasCWD PositiveEHD: Occasional
- KYKentuckyCWD PositiveEHD: Occasional
- LALouisianaCWD PositiveEHD: Occasional
- MDMarylandCWD PositiveEHD: Frequent
- MIMichiganCWD PositiveEHD: Frequent
- MNMinnesotaCWD PositiveEHD: Occasional
- MSMississippiCWD PositiveEHD: Occasional
- MOMissouriCWD PositiveEHD: Frequent
- MTMontanaCWD PositiveEHD: Occasional
- NENebraskaCWD PositiveEHD: Frequent
- NMNew MexicoCWD PositiveEHD: Rare
- NYNew YorkCWD PositiveEHD: Occasional
- NCNorth CarolinaCWD PositiveEHD: Occasional
- NDNorth DakotaCWD PositiveEHD: Frequent
- OHOhioCWD PositiveEHD: Frequent
- OKOklahomaCWD PositiveEHD: Occasional
- PAPennsylvaniaCWD PositiveEHD: Frequent
- SDSouth DakotaCWD PositiveEHD: Frequent
- TNTennesseeCWD PositiveEHD: Occasional
- TXTexasCWD PositiveEHD: Occasional
- UTUtahCWD PositiveEHD: Rare
- VAVirginiaCWD PositiveEHD: Frequent
- WAWashingtonCWD PositiveEHD: Rare
- WVWest VirginiaCWD PositiveEHD: Frequent
- WIWisconsinCWD PositiveEHD: Occasional
- WYWyomingCWD PositiveEHD: Occasional
All states
- ALAlabamaCWD PositiveEHD: Occasional
- AKAlaskaNo Detections to DateEHD: Rare
- AZArizonaNo Detections to DateEHD: Rare
- ARArkansasCWD PositiveEHD: Occasional
- CACaliforniaNo Detections to DateEHD: Rare
- COColoradoCWD PositiveEHD: Occasional
- CTConnecticutNo Detections to DateEHD: Rare
- DEDelawareNo Detections to DateEHD: Occasional
- FLFloridaCWD PositiveEHD: Occasional
- GAGeorgiaNo Detections to DateEHD: Occasional
- HIHawaiiNo Detections to DateEHD: Rare
- IDIdahoCWD PositiveEHD: Rare
- ILIllinoisCWD PositiveEHD: Frequent
- INIndianaNo Detections to DateEHD: Frequent
- IAIowaCWD PositiveEHD: Frequent
- KSKansasCWD PositiveEHD: Occasional
- KYKentuckyCWD PositiveEHD: Occasional
- LALouisianaCWD PositiveEHD: Occasional
- MEMaineNo Detections to DateEHD: Rare
- MDMarylandCWD PositiveEHD: Frequent
- MAMassachusettsNo Detections to DateEHD: Rare
- MIMichiganCWD PositiveEHD: Frequent
- MNMinnesotaCWD PositiveEHD: Occasional
- MSMississippiCWD PositiveEHD: Occasional
- MOMissouriCWD PositiveEHD: Frequent
- MTMontanaCWD PositiveEHD: Occasional
- NENebraskaCWD PositiveEHD: Frequent
- NVNevadaNo Detections to DateEHD: Rare
- NHNew HampshireNo Detections to DateEHD: Rare
- NJNew JerseyNo Detections to DateEHD: Frequent
- NMNew MexicoCWD PositiveEHD: Rare
- NYNew YorkCWD PositiveEHD: Occasional
- NCNorth CarolinaCWD PositiveEHD: Occasional
- NDNorth DakotaCWD PositiveEHD: Frequent
- OHOhioCWD PositiveEHD: Frequent
- OKOklahomaCWD PositiveEHD: Occasional
- OROregonNo Detections to DateEHD: Rare
- PAPennsylvaniaCWD PositiveEHD: Frequent
- RIRhode IslandNo Detections to DateEHD: Rare
- SCSouth CarolinaNo Detections to DateEHD: Occasional
- SDSouth DakotaCWD PositiveEHD: Frequent
- TNTennesseeCWD PositiveEHD: Occasional
- TXTexasCWD PositiveEHD: Occasional
- UTUtahCWD PositiveEHD: Rare
- VTVermontNo Detections to DateEHD: Rare
- VAVirginiaCWD PositiveEHD: Frequent
- WAWashingtonCWD PositiveEHD: Rare
- WVWest VirginiaCWD PositiveEHD: Frequent
- WIWisconsinCWD PositiveEHD: Occasional
- WYWyomingCWD PositiveEHD: Occasional
How to read these pages
Each state page shows current CWD status, a detection timeline when applicable, county-level records where seeded, transport and testing information, and a hunter FAQ. County pages drill into the specific record with first/most-recent detection years and any EHD activity on file.
Records flagged "estimated" mean we have not personally cross-referenced the specific record against a primary agency report — these are exactly the entries to double-check before relying on them.
Bottom line on safety: CDC and state wildlife agencies recommend testing harvested deer for CWD in CWD-positive areas before consumption, and not consuming meat from CWD-positive deer. EHD is not transmissible to humans — meat from EHD-affected deer is safe to eat per state agency guidance.