Colorado

Equine Disease Alerts

Risk Assessment

Risk Level
🟑 Moderate
Isolated cases - monitor the situation
Cases (30 days)
3
Total Cases
44
Total Alerts
37

Disease Activity in Colorado

Weekly case intensity by disease - Hover for details

Feb
Mar
Apr
May
Jun
Jul
EIA
WNV
Strangles
VS
EHV-1 Neuro
Less
More
πŸ’‘

Equine Infectious Anemia shows peak activity in winter/early spring (Jan-Mar) with 69% of cases occurring during this period.

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Equine Health Resources

Official contacts and requirements for Colorado

🩺State Veterinarian

🚨Report a Disease

To report suspected equine diseases:

303-869-9130

Reportable Diseases Info β†’

πŸ“‹Coggins Requirements

Coggins test required within 12 months for equines entering Colorado. Required for all sales, public events, and change of ownership.

View Import Requirements β†’

πŸ”—Additional Resources

Colorado Department of Agriculture

Visit Website β†’

Colorado Horse Council

Visit Website β†’

Interstate Livestock

Find import requirements for all 50 states

Visit Website β†’

Get free outbreak alerts for Colorado

We'll email you whenever a new equine disease outbreak is reported in Colorado. Unsubscribe anytime.

Recent Alerts in Colorado

Vesicular Stomatitisofficial quarantine

La Plata

1 cases
Jul 24, 2026
Vesicular Stomatitisofficial quarantine

Archuleta and Montezuma

0 cases
Jul 24, 2026
Vesicular Stomatitisofficial quarantine

Archuleta

1 cases
Jul 24, 2026
Vesicular Stomatitisofficial quarantine

Archuleta and La Plata

0 cases
Jul 20, 2026
Vesicular Stomatitisofficial quarantine

Montrose

0 cases
Jul 1, 2026
Vesicular Stomatitisresolved

Montrose

1 cases
Jun 30, 2026
Equine Infectious Anemiaofficial quarantine

Weld

Training Facility

1 cases
Jun 2, 2026
Vesicular Stomatitisofficial quarantine

Montezuma

0 cases
May 8, 2026
Vesicular Stomatitisofficial quarantine

Montezuma

1 cases
May 7, 2026
Equine Infectious Anemiaofficial quarantine

Weld

Training Facility

3 cases
Apr 28, 2026
Stranglesactive

Jefferson

Boarding Facility

2 cases
Apr 22, 2026
Stranglesactive

Jefferson

Boarding Facility

2 cases
Apr 18, 2026
Equine Infectious Anemiaofficial quarantine

Weld

Private Facility

1 cases
Feb 19, 2026
Equine Infectious Anemiaofficial quarantine

Weld

Training Facility

4 cases
Feb 3, 2026
Equine Infectious Anemiaofficial quarantine

Adams

Training Facility

2 cases
Jan 12, 2026
Equine Infectious Anemiaofficial quarantine

Adams

Training Facility

4 cases
Jan 12, 2026
Equine Infectious Anemiaofficial quarantine

Adams

Training Facility

1 cases
Dec 31, 2025
Equine Herpesvirus-1 Neurologicofficial quarantine

Larimer

Private Facility

1 cases
Dec 23, 2025
Equine Herpesvirus-1 Neurologicofficial quarantine

Larimer

Private Facility

1 cases
Nov 21, 2025
Equine Herpesvirus-1 Neurologicofficial quarantine

Larimer

Private Facility

1 cases
Nov 20, 2025
West Nile Virusactive

Weld

Private Facility

1 cases
Oct 29, 2025
West Nile Virusactive

Mesa

Private Facility

1 cases
Sep 30, 2025
West Nile Virusactive

Weld

Private Facility

1 cases
Sep 12, 2025
West Nile Virusactive

Weld

Farm

1 cases
Aug 14, 2025
West Nile Virusactive

Montrose

Farm

1 cases
Aug 12, 2025
West Nile Virusactive

Las Animas

Farm

1 cases
Aug 5, 2025
West Nile Virusactive

Douglas

Private Facility

1 cases
Jul 3, 2025
Equine Infectious Anemiaofficial quarantine

Douglas

Private Facility

1 cases
Apr 17, 2025
Equine Infectious Anemiaofficial quarantine

Jefferson

Boarding Facility

1 cases
Apr 17, 2025
West Nile Virusactive

Prowers

Stable

1 cases
Oct 31, 2024
West Nile Virusactive

El Paso

Private Facility

1 cases
Oct 8, 2024
West Nile Virusactive

Douglas

Private Facility

1 cases
Sep 25, 2024
West Nile Virusactive

Douglas

Private Facility

1 cases
Sep 11, 2024
West Nile Virusactive

Weld

Private Facility

1 cases
Aug 30, 2024
West Nile Virusactive

Larimer

Private Facility

1 cases
Aug 22, 2024
West Nile Virusactive

Larimer

Private Facility

1 cases
Aug 22, 2024
West Nile Virusactive

Pueblo

1 cases
Aug 19, 2024

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