Regarding Covid-19, I had a thought.  I work in the emergency department.  And for a couple of months I have been seeing a lot of patients with slam-dunk flu, but negative tests. Now, I know that the influenza test is imperfect. But I wonder if we’ve had this in the community for longer than we realized, but didn’t know to test for it? This is wild conjecture. I’m neither an infectious disease specialist nor epidemiologist. But I am on the front-lines of public health issues, every day that I go to work. 

Just wondering.

covid19 coronavirus influenza