Western Canadian Animal Health Network Information Library

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  • WeCAHN Equine Network Reports
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Document Date: Nov/12/2026

WeCAHN Equine Network OWNER Report Q2 2026

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- Equine Herpesvirus (EHV) activity increased in early 2026, including EHV-1 neurological disease and a confirmed EHV-1 abortion outbreak.

- Respiratory disease remained prevalent, particularly equine asthma and persistent strangles.

- Uterine disease remained the dominant reproductive concern, including cases of placentitis and increased Arcanobacterium hippocoleae isolations

- Emerging and important diseases to observe: Western Canada reported EIA and West Nile virus; Vesicular stomatitis and new world screwworm affected horses in the US. Shamonda, a new virus that emerged in Europe causing diarrhea and drop in milk production in ruminants, was also detected in horses.