This is a really big deal:
A team of the top United States honeybee experts at the U.S. Department of Agriculture's Beltsville, Maryland, laboratory near Washington DC has published a damning report linking tiny sub-lethal concentrations of one nicotine pesticide, imidacloprid, with an increase in another common gut disease, Nosema.
Although many other studies before this suggested similar findings, the US government has been far behind - this is therefore a breakthrough. It also acknowledges some of the major work done by French researchers: until now, the groundbreaking French research was largely ignored by official US government agencies. Look for breakthroughs because of this work.
The original article linked above was released for public/open access (thanks Springer Publishing for making this open access!!). It is a top-downloaded article at this time on Springer's website.
Abstract of Original Article: