One of my son’s friends is dating a doctor a couple of years out of Residency. He asked her about all the data that shows masks don’t have an effect on the spread of COVID and she agreed they don’t.
A bit later he asked her why all of a sudden there is a significant drop in flu cases. She replied, “because everyone is wearing masks”.
“Flu Cases Plummet during pandemic”
The CDC hid them in their “PIC” category.