Kentucky West Nile Virus Update 9/4/25

2 Equines Confirmed on September 4, 2025, As Affected With West Nile Virus:

In GRAYSON County KDA:06 is-a  5yr STDBRED Female  - DEAD

Onset Date:    08/27/25

Owner noticed the mare was 'not right' on 8/27 - Presented 8/28 Head Down, Lethargic, front limb ataxia - 9/4 reported as having died

Vaccination:  No WNV Vaccination History, 

In BOURBON County KDA :07 is-a  10yr POLO PONY Female  - ALIVE

Onset Date:    08/29/25         - Presented 8/29 lame, progressively worsened, developing front limb ataxia,shoulder/face fasciculation - 9/4/25 reported as continuing to improve

Vaccination:  No Current WNV Vaccination History - Last Vaccination was 2024

The Department of Agriculture's Equine West Nile page is being updated to include this 6th and 7th confirmed equine WNv for 2025 and the summary information will posted on the Equine Disease Communication Center webpage.

E.S. Rusty Ford

Rusty.ford@ky.gov

Equine Operations Consultant

Office State Veterinarian

KY Department Agriculture

502/782-5924