Lisa Schencker, Chicago TribuneMon, May 23, 2022, 10:00 PM Long COVID symptoms lasted a median of 15 months, Northwestern study finds Stacey Wescott/Chicago Tribune/TNS People with long COVID-19 who visited a Northwestern Medicine clinic were still experiencing symptoms such as headaches, dizziness, fatigue and brain fog for a median of 15 months after first falling...