Discover how disease outbreaks in recent years have impacted the horse industry and why it’s crucial to participate in disease prevention efforts.
In June 2011, an equine herpes virus (EHV) outbreak at a cutting event in Ogden, Utah, had a significant impact on the horse world. Over 2,000 horses and 242 premises in 19 states were exposed, leading to the cancellation of numerous competitions. This incident highlighted the need for a change in how the horse industry responds to disease threats.

Ogden served as a lesson on equine disease spread and the importance of early detection. Since then, industry experts have implemented measures to protect horses. This article explores the Ogden outbreak, lessons learned, and steps taken to ensure horse safety. Compliance with regulations on horse movement and disease control is emphasized.
Anatomy of an Outbreak
Different diseases can lead to widespread outbreaks, including viruses like EHV and bacteria like strangles. Factors contributing to outbreaks include widespread travel, large horse gatherings, lack of detection, and misinformation causing panic.
Widespread Travel
The increase in international equine events has raised disease transmission risks. Rules requiring vaccinations, temperature logs, and health statements aim to mitigate these risks.

Large Groups of Horses
Gatherings of horses at competitions create ideal conditions for disease transmission. Strategies like discouraging nose-to-nose contact and shared water sources aim to reduce risks.
Recently Introduced Risk Reduction Strategies
- Discourage nose-to-nose contact and shared water sources.
- Avoid sharing grooming supplies or tack.
- Implement “lights out” hours for horses to rest.
Slow Detection and Tracking
Early detection is crucial in preventing disease spread. Measures like daily temperature logs, isolation facilities, and veterinary inspections aid in swift identification and containment of diseases.
- Require daily temperature logs and isolation protocols.
- Adhere to regulations for health certificates to track horse movement.
Misinformation and Panic
Unverified information and panic can exacerbate outbreaks. Reporting diseases, complying with isolation requirements, and seeking accurate information are key in preventing unnecessary spread.
- Report diseases to authorities immediately.
- Comply with isolation protocols and avoid spreading unconfirmed information.
- Seek information from reliable sources like the Equine Disease Communication Center website.
Playing Your Part: Dos and Don’ts
Adhering to prevention measures is essential for protecting horses and the industry. Follow dos and don’ts to minimize outbreak risks.
Be Prepared!
Do: Schedule a CVI before traveling with your horse.
Do: Ensure your horse is vaccinated.
Don’t: Travel with a sick horse.
Don’t: Falsify temperature logs.
Do: Report fever and comply with isolation protocols.
Don’t: Share communal water sources or grooming equipment.
Do: Seek accurate information about outbreaks.
Be Smart!
Don’t: Move a horse exposed to disease.
Don’t: Spread unverified information.
Do: Utilize resources like the EDCC website.
Do: Consider isolation protocols for new or returning horses.
Don’t: Complain about rules; they are in place for protection.
By actively participating in disease prevention measures, we can collectively reduce the risk of outbreaks and safeguard our horses.