In a statement posted Monday, Nov. 23, 2015, the Colorado Department of Public Health and Environment (CDPHE) announced that it is working with other western states and the U.S. Centers for Disease Control and Prevention (CDC) to investigate illnesses due to E. coli O157:H7 from chicken salad purchased at Colorado Costco stores in late October.

When history is written about Colorado’s 10-month-old experiment with recreational marijuana, events of the past week should be good for at least a chapter. Dr. Larry Wolk, the state’s chief medical officer and the executive director of the Colorado Department of Public Health and Environment (CDPHE), came out for a ban on most marijuana-infused products…