Randomized Trial: Common Surgical Masks as Effective as More Expensive Tighter-fitting N95 Masks for Preventing Influenza Among Health Care Personnel

N95 Respirators vs Medical Masks for Preventing Influenza Among Health Care Personnel: A Randomized Clinical Trial – JAMA (free for a limited period)

Editorial: Respiratory Protection of Health Care Personnel to Prevent Respiratory Viral Transmission (free for a limited period)

Commentaries: Outpatient study finds masks, respirators equally protective – CIDRAP (free) AND Surgical masks as good as respirators for flu and respiratory virus protection – UT Southwestern Medical Center (free)