I rarely get any that have any significant problems. If they are slow in recovering shb may be an issue. Wax moths can also be an issue if for some reason they are very weak.
Have one with paralysis issues that I believe is linked to shb but they look like they will pull through.
I believe their honey was tainted cause of shb and it gave them the jitters badly.
I switched boxes and cleaned things up, my fingers are crossed on this one, but they appear to be pulling through.