by Kyle Becker, Becker News:

A Randomized Control Trial (RCT), the gold standard for scientific evidence in the medical community, was released on Tuesday in the Annals of Internal Medicine. The results from the RCT study deal a major blow to advocates of N95 and surgical masks as effective means to “stop Covid.”

As the study details, 1009 health care workers in four countries who provided direct care to patients with suspected or confirmed COVID-19 were given either N95 respirators or medical masks and tracked over the course of 9 weeks. The study was not able to “blind” the participants due to the visible differences in the masks.