Gordon Thomason passed this article on to me, from June 7 Science Daily, as reported in the journal Science, regarding mites and deformed wing virus.
..."showed how the Varroa mite caused deformed wing virus (DWV) -- a known viral pathogen -- to increase its frequency among honey bee colonies from 10 per cent to 100 per cent. This change was accompanied by a million-fold increase in the number o…