(Quartz) Americans have been trying hard to eat more healthily. Three decades of bad news about red meat and pork—worries about fat, cholesterol and cancer, for example—mean they’re passing up steaks, hot dogs and hamburgers more often. But they’re clearly not giving up meat altogether: they’re eating more chicken instead.

But chicken might not necessarily be a safer choice than other meats. A new study by Consumer Reports, a product review magazine, adds to the mounting concerns that chicken consumed in the US is teeming with harmful bacteria. Around half of the 300-plus raw chicken breasts it purchased in stores in 26 US states contained at least one type of bacteria that was resistant to three or more leading antibiotics.

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