Shelf life of WNV vaccines?

[katarine]

I ended up with two WNV vaccines left over from last spring. They've been in the fridge (in the butter dish, of course) all this time. Are these ok to use this year?

[Simbalism]

There should be an expiration date on the package. I have a bottle of rabies vaccine that had a long expiration date when I got it and have used it for several doses which was nice as when I bought it, I couldn't find individual doses. I kept mine in the butter section of frig too...hehe.

[hoopoe]

if it is in the vial or a commercially preloaded syringe, use the date on the package.

If someone drew it into a syringe, throw it out