Farmacology: Johns Hopkins researchers are investigating a troubling potential source of resistant pathogens: the American farm
By Dale Keiger
Ellen Silbergeld, Eng '72 (PhD), recalls that she did not want to go to the seminar. She was a professor of epidemiology at the University of Maryland School of Medicine in 1999 when her department's chairman needed an audience for the seminar's presenter, a candidate for a faculty position. Silbergeld recalls the chairman saying, "Please, just sit in the room. You can come to lunch." So she sat in the room, and something caught her attention. The seminar was on hospital-acquired infections, but the presenter mentioned in passing that some drug-resistant infections came from food. That seemed odd. Silbergeld knew you could pick up Salmonella from, say, tainted chicken salad. But how would that Salmonella have become resistant to antibiotics? She turned to a colleague and asked. Because, he said, factory chicken farms routinely feed antibiotics to their flocks, to accelerate growth, and the drugs generate resistance.




by Andrew Kimbrell

In March, Michelle Obama delighted locavores when she planted an "organic" vegetable garden on the White House's South Lawn. For years, Alice Waters, Michael Pollan, and other sustainable food activists had been pushing the idea as a way to reseed interest in do-it-yourself agriculture. Less than two months later, the National Park Service disclosed that the garden's soil was contaminated with toxic lead, and the plot's educational value took on a new flavor as the New York Times and other papers discussed how to make urban backyards that are laced with old lead-based paint safe for growing kale and cauliflower. But those stories might have fingered the wrong culprit. 


