Scientists are exploring new drugs that can fight antibiotic-resistant bacteria such as MRSA. Rodolfo Parulan Jr./Getty Images hide caption
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antibiotic-resistant bacteria
Researchers tested sewage across Europe, including in Germany, where this treatment plant is located, for bacteria with resistance to antibiotics. B&M Noskowski/Getty Images hide caption
It's a bacteria-eat-bacteria world, scientists say. Bdellovibrio bacteriovorus, shown here in false color, attacks common germs six times its size, then devours them from the inside out. Alfred Pasieka/Science Source hide caption
'Predatory Bacteria' Might Be Enlisted In Defense Against Antibiotic Resistance
A piglet gets a shot of antibiotic at a farm in Illinois. The World Health Organization is calling for strict limits on antibiotic use in animals raised for food. The guidelines could push many countries, including the U.S., to restrict drug use on farms. Stacey Wescott/Chicago Tribune/TNS via Getty Images hide caption
C. diff infections, which rose for decades, are now falling, according to the CDC. David Phillips/Science Source hide caption
The ancestors of modern hospital superbugs may have lived in the guts of ancient land animals. Mark Witton hide caption