Outbreak of Epizootic Hemorrhagic Disease Confirmed in West Virginia

The Wisconsin Department of Health Services has confirmed cases of Eastern Equine Encephalitis (EEE) in horses in Marathon and Clark Counties, prompting health officials to warn residents about mosquito-borne diseases. EEE is rare but serious, with one human case reported earlier in the year likely contracted out of state, highlighting the importance of mosquito bite prevention. In Southwestern Pennsylvania, epizootic hemorrhagic disease (EHD) has been confirmed in white-tailed deer, with the potential for mass mortality due to a biting midge vector, as stated by the Pennsylvania Game Commission. West Virginia officials also reported EHD in three counties, emphasizing that while outbreaks can be alarming, the disease is not a long-term threat to deer populations. Both diseases typically see a decline following the first hard frost, which kills the insects that spread them. Residents are advised to take preventive measures against mosquito bites and report dead deer to monitor outbreaks.