Early Symptoms of EHV You Need to Watch For

During an outbreak, fever is often the first red flag. Many barns catch EHV early simply by taking temperatures twice a day.

Common early signs

• Fever above 101.5°F
• Nasal discharge
• Lethargy or unusual quietness
• Coughing or reduced appetite

Neurologic (EHM) symptoms

• Hind-limb weakness
• Stumbling or wobbly gait
• Difficulty urinating
• Inability to stand

These neurologic cases require immediate veterinary intervention.

What You Should Do Today If You’re in an Affected Region

When EHV cases appear in your area—or anywhere along your horse’s travel route—swift action is your best defense.

1. Stop All Horse Movement

No clinics, no shows, no hauling. Virus spread almost always accelerates through travel.

2. Begin Temperature Checks

Record temperatures twice daily. A rising temp is often the first—and only—early warning.

3. Establish Quarantine Protocols

Any horse with fever or exposure should be isolated for 21–28 days with:

• Separate handler
• Separate equipment
• No shared airflow if possible

4. Contact Your Veterinarian

PCR testing is the gold standard for confirming infection.

5. Alert Your Boarding Barn or Event Organizer

Outbreak control is community-based. Transparency saves horses.