11/25/2025
๐๐๐-๐ ๐๐ง๐ ๐๐๐ ๐๐๐ซ๐ข๐๐ฌ: ๐๐ข๐จ๐ฌ๐๐๐ฎ๐ซ๐ข๐ญ๐ฒ; ๐๐๐ญ๐ข๐จ๐ง๐๐๐ฅ๐ ๐๐๐ฏ๐ข๐๐ ๐ญ๐จ ๐ซ๐๐๐ฎ๐๐ ๐๐ข๐ฌ๐๐๐ฌ๐ ๐ญ๐ซ๐๐ง๐ฌ๐ฆ๐ข๐ฌ๐ฌ๐ข๐จ๐ง
The term biosecurity is being thrown around a significant amount online these days, but what does that actually mean? Are event cancellations and staying home enough, or can we be doing more to keep our horses safe?
Good biosecurity practices are something that horse owners and event producers should be aware of and put into action, regardless of current disease outbreaks. Silent/asymptomatic shedders exist for many other equine diseases - not just EHV-1. So, what can we do to keep our horses healthy?
It goes beyond just not touching noses. Not sharing buckets, tack, water hoses, grooming equipment, nebulizers and other supplies is a great start, but there is so much more than that to be implemented. When traveling, I suggest not using a communal tie rail or fence to tie your horses to, and instead keeping them tied at (or in) your trailer. Do not touch other people's horses or walk through their trailer, manure, etc and track it back to your own animals, as humans and their shoes/footwear can serve as a conduit for virus particles. Ideally, if overnight stalling is required the stalls would not allow direct contact between horses (solid walls) and would not allow horses to stick their heads into the barn isle. After the event, stalls should be thoroughly stripped and sprayed with a disinfectant solution. Wood walls and dirt/clay flooring are inherently difficult to disinfect and should be avoided in high-traffic barns.
Commercial transporters can strip and spray down trailers between loads of horses using a disinfectant such as Rescue or Virkon, mixed and applied according to label instructions. These disinfectants can also be used to clean stalls and barns with appropriate flooring/siding/etc.
Warm-up pens can present a unique challenge to biosecurity as there are many horses breathing hard and snorting in close contact during warm ups. Most viruses, including EHV, are transmitted through direct contact and aerosolization (think, sneezing/snorting). Optimally, if it's possible you would warm-up in an area well removed from other horses, 80+ feet away to totally prevent inhalation of aerosolized virus particles. Logistically however, this is something that cannot happen at most facilities or events. This is where some screening practices can come into play.
It is good practice to take your horse's temperature (I recommend a digital thermometer used to take a re**al temperature) the day before and morning of an event/commingling with other horses, prior to hauling or any medication administration (medications such as banamine, bute, equioxx, ketofen, dexamethasone can decrease/mask fevers) AND/OR if they show any clinical signs associated with contagious disease at any point such as lethargy, coughing, sneezing, nasal discharge/snotty nose, inappetance, colic, diarrhea or any abnormal behavior. ๐ ๐๐๐ฏ๐๐ซ ๐ข๐ฌ ๐๐ง๐ฒ ๐ญ๐๐ฆ๐ฉ๐๐ซ๐๐ญ๐ฎ๐ซ๐ ๐๐๐จ๐ฏ๐ ๐๐๐.๐ ๐๐๐ ๐ซ๐๐๐ฌ ๐
. Routine daily temperature checks should become standard for at least 7 days after returning home from an event. ๐๐ง ๐บ๐ฐ๐ถ ๐ฏ๐ฐ๐ต๐ฆ ๐ข ๐ง๐ฆ๐ท๐ฆ๐ณ, ๐ฏ๐ฆ๐ถ๐ณ๐ฐ๐ญ๐ฐ๐จ๐ช๐ค ๐ด๐ช๐จ๐ฏ๐ด (๐ธ๐ฆ๐ข๐ฌ๐ฏ๐ฆ๐ด๐ด ๐ช๐ฏ๐ค๐ฐ๐ฐ๐ณ๐ฅ๐ช๐ฏ๐ข๐ต๐ช๐ฐ๐ฏ) ๐ฐ๐ณ ๐ข๐ฏ๐บ ๐ฐ๐ต๐ฉ๐ฆ๐ณ ๐ฑ๐ฐ๐ต๐ฆ๐ฏ๐ต๐ช๐ข๐ญ ๐ด๐ช๐จ๐ฏ๐ด ๐ฐ๐ง ๐ค๐ฐ๐ฏ๐ต๐ข๐จ๐ช๐ฐ๐ถ๐ด ๐ฅ๐ช๐ด๐ฆ๐ข๐ด๐ฆ, ๐ช๐ต ๐ช๐ด ๐ช๐ฎ๐ฑ๐ฐ๐ณ๐ต๐ข๐ฏ๐ต ๐ต๐ฐ ๐ฑ๐ณ๐ข๐ค๐ต๐ช๐ค๐ฆ ๐ช๐ด๐ฐ๐ญ๐ข๐ต๐ช๐ฐ๐ฏ ๐ฑ๐ณ๐ฐ๐ค๐ฆ๐ฅ๐ถ๐ณ๐ฆ๐ด ๐ข๐ด ๐ง๐ฐ๐ญ๐ญ๐ฐ๐ธ๐ด ๐ถ๐ฏ๐ต๐ช๐ญ ๐บ๐ฐ๐ถ๐ณ ๐ท๐ฆ๐ต๐ฆ๐ณ๐ช๐ฏ๐ข๐ณ๐ช๐ข๐ฏ ๐ค๐ข๐ฏ ๐ง๐ถ๐ณ๐ต๐ฉ๐ฆ๐ณ ๐ฆ๐ท๐ข๐ญ๐ถ๐ข๐ต๐ฆ ๐บ๐ฐ๐ถ๐ณ ๐ฉ๐ฐ๐ณ๐ด๐ฆ.
๐๐ญ-๐ก๐จ๐ฆ๐ ๐ข๐ฌ๐จ๐ฅ๐๐ญ๐ข๐จ๐ง ๐ซ๐๐๐จ๐ฆ๐ฆ๐๐ง๐๐๐ญ๐ข๐จ๐ง๐ฌ ๐๐จ๐ซ ๐ฌ๐ข๐๐ค ๐ก๐จ๐ซ๐ฌ๐๐ฌ:
- Separate from other horses/equines 30+ feet away if possible
- Dedicated hose, water buckets, feeders, manure fork and wheelbarrow for sick horse
- Dedicated footwear for sick horse, ideally rubber boots that can be dipped into a disinfectant foot bath and only worn when in the direct vicinity of that animal
- Latex/similar gloves for horse handling
- The sick animal should be handled last, fed last, have its pen cleaned last, etc. and the person responsible for doing so should immediately leave the premises and change clothes, shower, etc.
- Hand sanitizer should be available and used immediately after handling the sick horse, even if gloves are used. Thorough hand-washing is more ideal.
It is highly recommended to have your veterinarian out to examine your sick horses as soon as possible to perform appropriate diagnostics and administer treatment where necessary. Test results may further dictate isolation and quarantine procedures, especially in the case of reportable diseases such as EHV-1.
EHV can survive in environments for up to 35 days in ideal conditions, though the majority of the time it likely only lasts in the environment for less than 7 days. It is importing to keep healthy, unexposed horses out of exposed/contaminated areas for this general time frame - typical recommendations are 21-28 days. 35 days is optimal.
AAEP Biosecurity guidelines:https://aaep.org/wp-content/uploads/2022/01/AAEP-General-Biosecurity-Guidelines_1.pdf
CDFA Biosecurity Toolkit for Equine Events: https://www.cdfa.ca.gov/ahfss/Animal_Health/Equine_Biosecurity.html
AAEP Equine Herpesvirus (EHV-1 & EHV-4) Disease Guidelines:https://aaep.org/wp-content/uploads/2021/02/Equine-Herpesvirus-EHV-1-and-EHV-4-Guidelines-final.pdf