I thought I'd read somewhere that it can affect adult bees, and since the queen lives longer is more likely to reach the stage where she sickens from it. Wasn't there a study which showed that as the bee matures it takes a greater number of spores to infect it? I've also noticed a high number of my hives which have AFB are queenless, although that of course doesn't prove anything. :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: -- Visit www.honeybeeworld.com/BEE-L for rules, FAQ and other info --- ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::