If you've had a urinary tract infection, you're in good company. About 60% of women will develop one in their lifetime. UTIs lead to more than a million emergency room visits each year and more than $2 billion in medical costs.
Many of these infections are caused by common strains of E. coli bacteria that humans have lived with for millennia. But now researchers are investigating an unsettling source of some of the illness: the meat supply.
