Health Chicago Health Commissioner WTTW News | January 22, 2009, 7:00 pm The city's health commissioner is here to ask Chicagoans to make a dramatic change in what they eat. Thanks to our sponsors: View all sponsors Thanks to our sponsors: View all sponsors Related Stories What Impact Would a Switch to Permanent Daylight Saving Time Have? Red Cross Declares Second-Ever National Blood Supply Crisis There Are Already More US Measles Cases This Year Than in All of 2025 Illinois Reports 355 Confirmed and Probable Cases of Cyclosporiasis as Investigation Into Sources Continues Wildfire Smoke Kills Tens of Thousands of People a Year. Here’s How It Attacks the Body Lettuce at Taco Bell in 5 States Confirmed as a Source of Diarrhea-Causing Parasite Cyclospora Sign up for our morning newsletter to get all of our stories delivered to your mailbox each weekday. View the discussion thread. Thanks to our sponsors: