Pedigree Query

I'm looking for input on which West Nile vaccines I should order for my mares about to foal:

Prevenile West Nile Intervet

West Nile EWT Ft Fodge

or, West Nile Recombitek Meril

griff

We use Ft. Dodge. One thing we do is vaccinate after the mare foals and before she is bred back, just as a precaution that the West Nile doesn't do anything to the pregnancy.