Streptococcus pyogenes shouldn't be taken lightly. Left untreated, an infection with germ can trigger an autoimmune disease that damages the heart. NIAID/Flickr.com hide caption

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NIAID/Flickr.com

Piglets in a pen on a hog farm in Frankenstein, Mo. Jeff Roberson/AP hide caption

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Jeff Roberson/AP

Antibiotic Use On The Farm: Are We Flying Blind?

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A truckload of live turkeys arrives at a Cargill plant in Springdale, Ark., in 2011. Most turkeys in the U.S. are regularly given low doses of antibiotics. Danny Johnston/AP hide caption

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Danny Johnston/AP

Antibiotic-Resistant Bugs Turn Up Again In Turkey Meat

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Organic apples hang from trees in an orchard in Forest Range, Adelaide Hills, South Australia. donkeycart/via Flickr hide caption

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donkeycart/via Flickr

Klebsiella pneumoniae, seen here with an electron microscope, are the most common superbugs causing highly drug-resistant infections in hospitals. Kwangshin Kim/Science Source hide caption

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Kwangshin Kim/Science Source

Infections With 'Nightmare Bacteria' Are On The Rise In U.S. Hospitals

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Giancario Gemignani-Hernandez, 2, of Pittsburgh has his ear examined by Dr. Alejandro Hoberman. Gene J. Puskar/AP hide caption

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Gene J. Puskar/AP

Pediatricians Urged To Treat Ear Infections More Cautiously

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Clostridium difficile bacteria produce a toxin that damages the intestine and causes severe diarrhea. Courtesy of David Goudling/Nature Genetics. hide caption

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Courtesy of David Goudling/Nature Genetics.

Childhood obesity is on the rise in many countries and overuse of antibiotics is now on the radar as a possible factor in the epidemic. Here 18-month-old twins are weighed in a nutritionist's office in Colombia. Raul Arboleda/AFP/Getty Images hide caption

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Raul Arboleda/AFP/Getty Images

The FDA's latest effort to end the use of antibiotics as growth promoters in animals is getting mixed reviews from activists. Rob Carr/AP hide caption

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Rob Carr/AP

FDA Launches Voluntary Plan To Reduce Use Of Antibiotics In Animals

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