By Ann Perry
December 12, 2013
Studies by the U.S. Department of Agriculture (USDA) indicate the dust stirred up by wind and restless cattle at dairies does contain bacteria, fungi and small bacterial remnants such as endotoxins. But these potentially problematic particles are not found at high levels far beyond the barnyard.
Read the story at (12/12) http://www.ars.usda.gov/is/pr/2013/131212.htm
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