In Ontario, and many other regions, mid-August is the beginning of the high risk period for West Nile virus infection in people and animals such as horses. The Ontario Veterinary College has published an informational video on YouTube. This video has information about measures you can take to reduce the risk of West Nile virus exposure and disease, for both people and horses. Click on the image to watch the video. More information about West Nile virus is also available in the blog post entitled West Nile virus in dogs and cats.
https://youtube.com/watch?v=xptV1WxKbus%26hl%3Den%26fs%3D1