Scientist Noah Wilson-Rich is creating vaccines for honey bees against CCD and Nosema.

"This summer, [Best Bees Company LLC] will field-test an antifungal vaccine, made from yeast sugar, along with a probiotic supplement for bees. They hope the vaccine will act against the fungal spore Nosema, a growing threat to hives in the United States and one of the parasites linked to CCD."

http://sciencecareers.sciencemag.org...redit.a1300061

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I noticed that vaccines for bees is not a new idea on BeeSource. There are threads from 2008 and 2009 that discuss Beeologics and Remebee (from the Israelies). For interested folk, links to those threads are:
http://www.beesource.com/forums/show...accine-for-CCD
http://www.beesource.com/forums/show...26-Is-CCD-Dead