> There is lots of evidence that wearing mask protects others, that's why surgeons wear surgical masks during surgery. There is a lack of evidence for the effe

> There is lots of evidence that wearing mask protects others, that's why surgeons wear surgical masks during surgery. There is a lack of evidence for the effectiveness of masks during surgery, and they aren't always mandatory to wear: https://www.cochrane.org/CD002929/WOUNDS_disposable-surgical-face-masks-preventing-surgical-wound-infection-clean-surgery https://www.cochrane.org/CD002929/WOUNDS_disposable-surgical... https://www.medpagetoday.com/infectiousdisease/infectioncontrol/16278 https://www.medpagetoday.com/infectiousdisease/infectioncont... https://ncbi.nlm.nih.gov/pmc/articles/PMC4480558/ https://ncbi.nlm.nih.gov/pmc/articles/PMC4480558/ There are obvious hygienic benefits - no-one wants to be splashed with bodily fluids - but there is a lack of evidence that they actually protect the patient.