[nickthemagicman]

Read that paper again.

Cloth mask wearers had a higher rate of CLI than the control group.

The control group being may or may not be wearing a mask.

"""The control arm was ‘standard practice’, which comprised mask use in a high proportion of participants. As such (without a no-mask control), the finding of a much higher rate of infection in the cloth mask arm could be interpreted as harm caused by cloth masks, efficacy of medical masks, or most likely a combination of both."""

Point is: The CDC mask policy of wearing a dirty cloth rag on your face until the waiter brings the breadsticks is probably not ideal.