Because people test positive for the normal flu for weeks after recovery, and THEY KNOW THAT !!
Or did it just happen to slip their minds on that important point and they suddenly remembered
What is happening now is extra-ordinary. They literally know very little about the flu. They don’t pay attention to it. Did you know you can start showing symptoms within “THE HOUR” of being exposed to someone with the flu? I do, I know right away I’ve been exposed, I get mild symptoms that go away within a day or so. Also, you spread the flu as much as a week after being what you think is “fully recovered”. I’m not going to go out and find you links because I don’t have time right now, but I assure you this is true.
There is very little “new” about COVID-19 if anything