11/19/2025
๐จ๐จEHV NOTICE๐จ๐จ
As many of you have heard- texas and some southern states are having a break out of EHV- equine herpes virus.๐ซ๐ Most commonly, this is spread through high density horse populations, such as shows, sales, and breeding traveling.
There are 3 forms as pictured below.
The 5 way vaccine we vaccinate all our patients with DOES provide immune response against Equine rhinopneumonitis (EHV-1 and EHV-4).THERE IS NO VACCINE AGAINST THE NEUROLOGIC FORM SO MONITORING AND PREVENTION ARE CRITICAL.
If your horses ARE NOT UP TO DATE (recommended every 6 months for healthy horses and every 4 for immune compromised horses) or are pregnant- let's get them scheduled ASAP to keep your babies protected.
As always if any of these signs are seen, please contact us immediately as well. (877) 793 3373. Text or call!
Diagnosis and quick treatment are critical! ๐ฉป๐ฉบ๐ฉน๐
Vaccine info:
Current evidence shows vaccines do not PREVENT EHM, but they can REDUCE viral shedding and shorten viremia, which lowers barn-wide spread and is important to the community. Reduced viremia = reduced likelihood of SEVERE disease and decreased transmission.
Boosters are helpful when:
โข A horse was vaccinated > 90 days ago, or
โข You are preparing for high-risk environments (events, hauling, mixing populations).
What the research shows:
โข Booster vaccination increases IgG1 and IgG4/7, the antibody classes linked with limiting viremia.
โข Boosters are most effective in younger horses, previously vaccinated horses, and non-pregnant horses.
Vaccines do NOT stop a horse already incubating EHV-1 from developing signs, and they do not eliminate the risk of neurologic disease. For horses already exposed or febrile, do not vaccinate until cleared by your veterinarian.
Link to Equine Disease Center:https://aaep.org/wp-content/uploads/2024/02/EHV1-4-guidelines-2021.pdf