Do Cloth Masks Work? Plus the Basics of Contact Tracing-Do Cloth Masks Work?

Everywhere we go, we see visible signs of the pandemic, primarily people wearing cloth masks. Dr. Lisa Brousseau spent decades studying the efficacy and fit of surgical masks and respirators, and the aerosol transmission of infectious disease. She says there is no scientific basis for the general public to use cloth masks to prevent COVID-19. She explains why there is a great difference between the use of masks in medical settings vs going to the grocery store. She is concerned that authorities who are ordering the use of bandanas and the like are not taking the issue seriously, and that masks may cause the public to disregard physical distancing.