Forgive me if this was already posted:
Neonicotinoid clothianidin adversely affects insect immunity and promotes
replication of a viral pathogen in honey bees
http://www.pnas.org/content/early/2013/10/18/1314923110
That is the link to the abstract, but in the sidebar you can click to see
the whole paper.
Note that the organophosphate chlorpyrifos does not have the same immune
depressing response.
We have discussed several papers on synergy between neonics and disease,
but I have not seen the mechanism explained in such detail before.
Stan
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