A “MMWR” report on mask wearing. Can the results be used for decision making?
A report from the CDC in MMWR (Morbidity and Mortality Weekly Report) on February 4, Volume 71, examined if wearing a mask protects from getting COVID-19. The study design is a case-control study. Cases were people who tested positive for COVID-19 and the comparison group was those who tested negative for COVID-19. These subjects were […]
A “MMWR” report on mask wearing. Can the results be used for decision making? Read More »