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We have compulsory mask wearing for NHS staff on
What about the general public? An article in the BMJ raises the ethical question: should the Government apply the precautionary principle and encourage the wearing of masks on the grounds that we have little to lose and maybe something to gain?
There are four key messages on Covid-19. The precautionary principle is to act without definitive evidence. It is contested that wearing masks will reduce transmission, and limited protection could prevent some transmission, but because it is such a serious threat, the wearing of masks in public should be advised under the precautionary principle.