Equine Health Update EHU Vol 19 Issue 3 - Page 16

EQUINE | Equine Disease Update Equine Disease Quarterly FROM: EQUINE DISEASE QUARTERLY College of Agriculture, Food and Environment Department of Veterinary Science July 2017 Volume 26, Number 3 B iosecurity is a commonplace term these days among horse owners and equestrian event managers. Horse owners must take personal re¬sponsibility for reducing risks of equine infectious disease outbreaks. Newly implemented vaccina¬tion and isolation facility requirements for horse event venues are another layer of protection, but cannot take the place of an imple- mented farm biosecurity plan. es is also critical. I was amazed at how much interesting (and often inaccurate) information is available regarding biosecurity. Biosecurity guidelines from reliable resources are readily available on the internet and in printed materials. The word “guideline” should be empha-sized. Protocols and disinfectant products used in a university equine hospi- tal that has painted concrete stalls, drains, and a cadre of well-trained personnel whose sole responsibilities are cleaning and disinfecting stalls might not be ap- propriate or practical for a different equine facility. The environ-ments are different; the horses’ risks are differ- ent (hospital patients vs. healthy horses) and the types of pathogens likely present are very different. The best biosecurity plan is one tailored to the facility and envi- ronment, the horses, and the risks. Chikungunya virus is not known to cause disease in horses anywhere, let alone be a “deadly disease to hors- es” in the U.S. Somehow I was not surprised that the origin of the article was a manufacturer of insecticides. While insect control is part of a comprehensive biose- curity program, scare tactics are not effective or ethical marketing strategies. Risks are the types of pathogens of concern (horse show vs. a broodmare foaling barn), as well as the volume of human and horse traffic at the facility (busy horse sales venue vs. closed herd of retirees). Obtaining biosecurity information from reliable resourc- 16 Take the internet article on the dangers of mosquitoes to horses (true) since they can transmit West Nile virus to horses (true), and also the deadly chikungunya virus to horses (false, false, false). In another article on biosecurity, the author referred to a disinfectant type that was the “gold standard” of disinfectants. However, there is no “gold standard” of disinfectants for horse facilities. Different disinfectants have different capabilities of killing different pathogens under different environ-mental conditions (hard water, cold environmental temperatures, organic matter, etc.). One of the broadest spectrum disinfectants is bleach. However, bleach is readily inactivated in the pres )ɝѕȀͽɔь́Ё)ѥٔɐɽ́ə́ѡЁٔѡȴ)՝䁍ɔɕɝѕȸ5+ե!ѠUє