There are many who won't even get a test now, to check if it's COVID. They ride it out, and won't know if they just had a flu, cold, or COVID. And thus it seems we've currently plateaued in case counts in the US :(
40 000 people forced to work by their employers, who then spread it to colleagues and customers, because they had a respiratory disease but ‘it isn’t COVID’.
COVID is particularly bad, but employees should also be allowed to stay home and rest, to not spread the cold and flu.