There is at least one condition that self proclaimed experts have
     declared to be "the rottenest case of AFB I've ever seen."  The
     samples on this tested negative.  The condition was cleared up by
     requeening.  The puzzler on this one was that the queen from the
     afflicted colony was in two cases put into another hive with different
     bees and the resulting colony built up normally from that point.
     There was no more "disease" in either the original sick colony or the
     old queens new domain.
 
     Tom Elliott
     Eagle River,  Alaska