http://www.motherjones.com/tom-philpott/2013/04/study-confirms-antibiotic-resistant-bugs-jump-animals-humans http://www.motherjones.com/tom-philpott/2013/04/stu

http://www.motherjones.com/tom-philpott/2013/04/study-confirms-antibiotic-resistant-bugs-jump-animals-humans http://www.motherjones.com/tom-philpott/2013/04/study-confir... After analyzing the mutations of the MRSA strains in the women and the animals, the researchers concluded that it had been circulating among the livestock before jumping to the people. The researchers' analysis is "so fine-grained," McKenna writes, that it "seems to me to be difficult to challenge." The Danish study comes on the heels a 2012 paper by a consortium of US and European researchers, which used gene sequencing to show that another common strain of MRSA originated in humans as a common staph infection, jumped to livestock, where it evolved resistance to the common antibiotics tetracycline and methicillin, and then jumped back to humans. Of course, you can also contract antibiotic-resistant pathogens through contact with raw meat—as, for example, more than 100 people did when the agribusiness giant Cargill sent out tens of millions of pounds of ground turkey tainted with antibiotic-resistant salmonella in 2011.