tb

Sorry, don't know about the mortality rate in fit or unhealthy animals. Here in Georgia, many many horses have been diagnosed with WN and died, ages vary from young to old. I know of one horse personally that was in extremely good physical condition that was diagnosed and died. A few horses in our area have been treated and been okay, but the majority have died. Don't know about the physical condition of those horses.

"I get the sense that healthy, fit animals get this only if they are bitten multitudinous times." From the articles I have read, animals do not need to be bitten more than once, fit or not.