Underwood tests positive for COVID-19 Ryan Voyles 3 years ago Photo By: R. Dione Foto (www.rdionefoto.com) U.S. Rep. Lauren Underwood, D-Naperville, said Friday she will isolate after testing positive for COVID-19.To access this content, you must purchase 1 Year Health News Illinois Subscription or 1 Year Group Subscription - Up to 5 Users, or log in if you are a member.