>Randy, not all viruses.  For cerana we had the Thai sacbrood

Yes, I should have mentioned that one--thanks!  In general, it appears that
with mellifera and cerana kept in the same area, that cerana has less virus
prevalence.

>On the contrary Randy, as I understand, scutellata and cerana are more
> subject to die in larval stage when virus are present, therefore, higienic
> behaviour of bees can operate and remove those larvas.


The recent study by Page suggests that self sacrifice is due to an
apoptosis-like response to wounding alone--not requiring infection by a
virus.  I write about the difference in an article in the cue.  I find the
subject very interesting, and something that is very promising for breeding
mite resistance via what I call "intolerance."

BTW, apologies to all for getting so behind on posting my articles to the
web.  I spend Jan 1st fulfilling a New Year's resolution, and sent 17
articles to my web tech for posting.  I'll send notification once they're
up.

-- 
Randy Oliver
Grass Valley, CA
www.ScientificBeekeeping.com

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