![University of Minnesota Study Says Tillage Might Have Helped Spread Bird Flu](http://townsquare.media/site/67/files/2014/08/Chicken-breasts.jpg?w=980&q=75)
University of Minnesota Study Says Tillage Might Have Helped Spread Bird Flu
A University of Minnesota study says farmers who actively tilled fields near turkey barns in the early days of last year's bird flu outbreak may have unwittingly helped spread the virus.