Eastern Equine Encephalitis (EEE) has been confirmed in the United Counties of Leeds and Grenville, Ontario. On August 10, 2024, a 4 year old jenny donkey was normal in the morning, but became recumbent, dull, unresponsive with increased heart and respiratory rates. Supportive treatment was attempted but she was euthanized later that day. The donkey was not vaccinated against EEE.