http://gizmodo.com/cattle-yard-aroma-carries-antibiotics-and-antibiotic-re-1694728366

"The researchers also point out that distribution can be further fueled by "significant wind energy potentials and frequent wind events in this region." Given that the consumption of antibiotics and antibiotic-resistant DNA by humans can lead to antibiotic resistance, this mode of transportation is of some concern—especially for the vegetarians among us."

Really surprised this study saw the light of day at TTU...