Greetings to all and trust this finds you staying safe and healthy. Feel free to distribute to your memberships as needed.
> I am taking this opportunity of slow-down in work due to COVID-19 to give some general information on our equine disease surveillance programs.
> West Nile Virus (WNv)
> Thus far in 2020 we’ve not yet had any WNv cases reported.  I do though want to take this opportunity to give just a brief summary of the historical data and hoping this serves as a reminder of the efficacy demonstrated by the available vaccines as we are approaching that time of year we historically begin seeing West Nile virus affecting our equine populations.
> During the period 2001 through 2019 – we’ve had a total of 763 equine confirmed positive and affected with West Nile virus.
> 654 of the cases were unvaccinated, 74 were reported as partially vaccinated and 8 cases had vaccination status as unknown but likely not vaccinated.  With these numbers we can extrapolate that greater than 96% of the cases were not current on vaccination.
> In these difficult economic times, clients may be looking at where they can save a dime or two – and I believe that the data above gives clear evidence that vaccinating against WNv is a sound investment.  Annual summaries can be viewed at<>
> Potomac Horse Fever (PHF)
> In other news I would like to mention that during the past several weeks we have confirmed cases of Potomac Horse Fever.
> Thus far, we have had 10 confirmed cases- with 1 case each in Adair and Shelby Counties, 3 cases in Bourbon County, 5 in Fayette County with note that 1 of the Fayette cases was a horse brought over from Indiana for treatment.
> Of the 10 cases – 8 are reported as having survived the infection with the remaining 2 cases reported as deceased.  Symptoms seen include elevated fevers, varying degrees of diarrhea, dehydration and low white cell counts.
> Eastern Equine Encephalitis (EEE)
> Historically we don’t see EEE cases in Kentucky, but with the year we are having I did want to make mention of it as there has been cases confirmed in VA as well as SC, GA, GL NY and WI.
> 2013 we did confirm EEE  in 2 horses (1 each in Logan and Carlisle County) and in 2008 a single case was confirmed.  Summaries of these cases can also be found in the west-nile link posted above.
> Vesicular Stomatitis Virus (VSv)
> Again, though a condition not routinely found in Kentucky, I did want to make mention of the VSv cases USDA has reported thus far this year, as the geographical distribution of cases seen this year is a bit atypical.  VSV-affected states USDA has reported during the 2020 outbreak include Arkansas, Arizona, Kansas, Missouri, Nebraska, New Mexico, Oklahoma, and Texas.  VSV causes blister-like lesions to form in the mouth and on the dental pad, tongue, lips, nostrils, hooves, and teats. I also want to remind our horsemen and practitioners that Vesicular Stomatis is a reportable disease.  Additional Information regarding the current Vesicular stomatitis situation can be found  at: VSV Sit Reports<>
> E.S. Rusty Ford
[email protected]<mailto:Rusty[email protected]>
> Equine Operations Consultant
> Office State Veterinarian
> KY Department Agriculture
> 502/782-5901