
Caring for the Horse’s Liver: What to Know About Hepatitis Viruses
Equine hepatitis viruses EqHV and EqPV-H can cause chronic or acute liver disease in horses. Early diagnosis, biosecurity, and prevention are key.


Equine hepatitis viruses EqHV and EqPV-H can cause chronic or acute liver disease in horses. Early diagnosis, biosecurity, and prevention are key.

The horse lived in Sanilac County and was unvaccinated.

Dr. Martin Nielsen explains how testing and strategic deworming programs support effective parasite control and protect horses’ long-term health.

The cases are located in Hopkins and Boyle counties.

Here’s what researchers know about the role biomarkers might play in predicting and monitoring equine gastric ulcer syndrome.

The mare lives in the District of Sudbury.

The horse lives in Carroll County.

The horse lives at a boarding facility in Montgomery County.

One expert explains how exposure to dust can negatively affect equine respiratory health and how owners can reduce their horses’ risk.

A Friesian gelding in Providence County, Rhode Island, has tested positive for strangles.

A Dutch Warmblood stallion in Yolo County has tested positive for West Nile virus. This is California’s fourth confirmed equine WNV case in 2025.

The horse lives in Orange County.

The horse lives in the Regional Municipality of Waterloo.

An undervaccinated mare in the Regional Municipality of Peel, Ontario, has tested positive for West Nile virus.

One horse contracted the disease after new boarders moved to the farm.

Follow these 5 tips for feeding horses with recurrent colic while awaiting a diagnosis or targeted treatment.
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