Re: WNV in horses

<x-charset iso-8859-1>The state of Florida is keeping statistics on number of cases in vaccinated
horses, as well as whether they have received only one dose or both, and the
dates of vaccination compared to date of onset. Data is available for both
2001 (vaccine use started mid to late August) and 2002. Contact Dr. William
Jeter at the Tallahassee office, jeterw@doacs.state.fl.us or 850-410-0942.
Data compiled in 2001, in the face of an active outbreak, showed no
protection for horses having received one dose of vaccine and disease in
fully vaccinated horses of about 11% of the all cases in horses from end
September/early October on. I share your frustration with Ft. Dodge's
policies.

Eleanor Kellon, V.M.D.

----- Original Message -----
From: by way of Lois Levitan <ETHDVM@aol.com>
To: <WESTNILEVIRUS-L@cornell.edu>
Sent: Monday, September 09, 2002 2:48 PM
Subject: WNV in horses

>
> I am an equine veterinarian in NC. We are all concerned about the
> possibility of WNV in our horses. Also of concern is whether or not
> the vaccine under conditional license to Ft. Dodge is really
> effective. I have been frustrated by Ft. Dodge's unwillingness to
> share with the practitioners out in the field any validation that the
> vaccine is of benefit. I am constantly told that Ft. Dodge is going
> to provide the USDA/APHIS offices with results of their controlled
> studies, but that is the only information I am given.
>
> Is there any one out there, in the field, who has been compiling
> statistics on horses that have been vaccinated and then likely
> exposed to the virus (such as in barns where some horses became
> symptomatic with the virus)? I know this way of looking at results
> would not carry the validity of a controlled study, but it would sure
> help to know that some horses are apparently receiving some immunity.
> If you would pass this along to any one who has the same concerns or
> possibly some answers, I would be very grateful.
> Thank you
>
> Ellen Hoots, DVM
>
> (919) 557-0544 fax
> e-mail neighdr@aol.com
> --
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Received on Tue Sep 10 13:50:39 2002