(CBS News) – Nearly one in five urinary tract infections in a group of patients in Southern California were linked to E. coli from contaminated meat, a four-year study found. And researchers say the problem could be occurring across the United States. 

The researchers found 18% of the more than 2,300 urinary tract infections, or UTIs, in the study — published in the mBio journal on Thursday — were linked to E. coli strains found in meat samples from grocery stores in the same area. (Read More)