11/26/2025
๐๐๐-๐ ๐๐ง๐ ๐๐๐ ๐๐๐ซ๐ข๐๐ฌ: ๐๐ฎ๐ซ๐ซ๐๐ง๐ญ ๐ญ๐ซ๐๐ง๐ฌ๐ฉ๐จ๐ซ๐ญ ๐ซ๐๐๐จ๐ฆ๐ฆ๐๐ง๐๐๐ญ๐ข๐จ๐ง๐ฌ ๐๐ง๐ ๐ซ๐๐ช๐ฎ๐ข๐ซ๐๐ฆ๐๐ง๐ญ๐ฌ
๐๐/๐๐/๐๐๐๐ ๐๐:๐๐๐๐ฆ
The current EHV-1 case total associated with the Waco, TX outbreak is 32, 26 of which are the EHM/neurologic form. Affected states at this time include Texas, Oklahoma, Louisiana, South Dakota, Colorado, New Mexico, Arizona and Washington state. There are not reported numbers of mortalities to present.
What do we predict will happen over the next few weeks? Dr. Buchanan at Brazos Valley Equine has put together a great explanation of what we can expect as far as timeline, waves of the virus and how exposure is defined. This is why we will still expect to see new fevers and new cases, and why continued monitoring and biosecurity practices remain crucial so we can mitigate disease spread. Rather than continue to panic and cause distress, this is an expected flow of EHV and we can continue to all slow spread and identify cases to the best of our ability.
The total cases reported at this time do appear to skew the numbers and make it seem like there is a significant amount of horses with EHM over the respiratory form of EHV-1, however we know that the majority of exposed horses will not develop neurologic disease. Additionally, cases are likely under-reported and all exposed horses may not be getting tested.
๐๐ฎ๐ซ๐ซ๐๐ง๐ญ ๐ญ๐ซ๐๐ฏ๐๐ฅ ๐ซ๐๐๐จ๐ฆ๐ฆ๐๐ง๐๐๐ญ๐ข๐จ๐ง๐ฌ ๐๐ง๐ ๐ซ๐๐ฌ๐ญ๐ซ๐ข๐๐ญ๐ข๐จ๐ง๐ฌ:
๐๐๐ฏ๐๐๐ (๐๐/๐๐)
- Entry permits required until January 1, 2026
- 21 day rule applies (has not been at a premise where a confirmed case of EHV-1 has been in the last 21 days)
- Health Certificates/CVIโs are valid for 30 days from date of issuance, though it needs to be sent with supporting documentation to obtain an entry permit
- Supplemental statements required on CVIs
๐๐ซ๐ข๐ณ๐จ๐ง๐ (๐๐/๐๐)
- Health Certificates/CVIs for horses coming from a state with a confirmed case of EHV-1 (TX, OK, LA, SD, CO, NM, AZ, WA) in the last 30 days are only valid for 5 days
- Non-positive origin states: 30 day health certificates accepted
- Supplemental statements required on CVIs
๐๐จ๐ง๐ญ๐๐ง๐ (๐๐/๐๐)
- CVIs/health certificates must be issued no earlier than 72 hours prior to travel in MT
- Horses potentially exposed to EHV-1 within 14 days of inspection are not eligible for import/travel into MT
- Horses displaying clinical signs of EHV-1 or EHM are not eligible for import/travel into MT
๐๐ซ๐๐ ๐จ๐ง (๐๐/๐๐)
- No current restrictions, but event producers need to register their event with the OR Dept. of Ag. 20 days prior to event, collect records of attendees and horses present and have a designated isolation area available at events.
๐๐๐ฅ๐ข๐๐จ๐ซ๐ง๐ข๐ (๐๐/๐๐)
- No current restrictions, but horses returning from exposed events/facilities are recommended to be isolated for 21 days with twice daily temperature monitoring and increased biosecurity.
๐๐จ๐ฅ๐จ๐ซ๐๐๐จ
- Supplemental statements required on CVIs/health certificates
- No current restrictions
*not all states have posted restrictions, even those with positive cases - these are the only valid restrictions/reccomendations I was able to find*
The majority of states are not accepting 6-month passports (Extended Equine Certificates of Veterinary Inspection/EECVI) at this time. Shorter term health certificates (Certificate of Veterinary Inspection/CVI) are still being accepted and can be issued by your veterinarian for travel. If you are traveling, you and your veterinarian should contact the destination state for the most current regulations.
Additional states may require supplemental statements on CVIs/health certificates - it is recommended to contact the destination state when traveling to find out the most current regulations.
- Dr. Cooper
NV recommendations, supplemental statements and updates can be found here: https://agri.nv.gov/Animals/Animal_Disease/Import_Requirements/
AZ recommendations, supplemental statements and updates can be found here:https://agriculture.az.gov/sites/default/files/Letterhead%20Color-NEW%20LOGO-MOVEMENT%20RESTRICTIONS-SIGNED.pdf
MT recommendations and updates can be found here: https://news.mt.gov/Department-of-Livestock/Equine-Import-Alert
OR recommendations and updates can be found here: https://www.oregonvma.org/news/oda-implements-rules-to-help-prevent-the-spread-of-equine-herpesvirus
CA recommendations and updates can be found here: https://www.cdfa.ca.gov/ahfss/animal_health/equine_herpes_virus.html
CO recommendations and supplemental statements can be found here: https://ag.colorado.gov/animal-health/reportable-diseases/equine-neurologic-disease/equine-herpes-virus-outbreakey o
