But the Covid ‘test’ has a 97% false positive rate and cannot distinguish between Covid and the common cold.
I don't know if that statement is true, but even if it was the CDC study still shows that masks don't work to protect children in school. All of the kids were wearing masks, and they still got infected with an airborne virus.
In terms of showing what the effect of masks is it does not matter which type of virus is present. If the masks worked for COVID-19 they would also work for a cold virus. But regardless of what virus was present the masks didn't do anything to protect the kids.
This CDC study shows that putting masks on school children is pointless.