Thursday, February 23, 2012
Feedlot owners conspiring to kill you
They would say they are only trying to get bigger animals for their buck but now there is scientific evidence that one of their preferred methods is responsible for drug resistant bacteria.
According to a paper in the American Society of Microbiology’s newsletter mBio, researchers have sequenced the genomes of 88 closely-related strains of Staphylococcus aureus. They have concluded that one “particularly nasty” strain, CC398, began as a fairly harmless human bacterium known as MSSA, but evolved after colonizing the systems of pigs, chickens and other livestock.The thing about feedlot and factory farm owners is that given the choice between forgoing some profit or developing the next Black Plague, they would cheerfully develop the Plague.
Inside the animals, the bacterial strain was bombarded by an array of broad-spectrum antibiotics, drugs commonly used by factory farmers to reduce infections and disease in animals kept in close quarters. According to mBio, this allowed the germs to become resistant to antibiotics like tetracycline and methicillin, as well as allowing the microorganisms to become “bidirectional,” meaning that they can freely be transmitted between humans and livestock.
The resistant CC398 strain first appeared in livestock in 2003, but is now widespread among U.S. farm animals and has been causing sepsis and skin infections, mostly in farm workers. So far, the infection has not been able to transmit from human to human.
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