H
HarryStotle
Guest
I have read a few of those and they are very tenuous in their claims, amounting to: given what we know, and we know very little, it is probably better to wear a mask than not.Seven studies have confirmed the benefit of universal masking in community level analyses: in a unified hospital system,38 a German city,39 a U.S. state,40 a panel of 15 U.S. states and Washington, D.C.,41,42 as well as both Canada43 and the U.S.44 nationally. Each analysis demonstrated that, following directives from organizational and political leadership for universal masking, new infections fell significantly. Two of these studies42,44 and an additional analysis of data from 200 countries that included the U.S.45 also demonstrated reductions in mortality. An economic analysis using U.S. data found that, given these effects, increasing universal masking by 15% could prevent the need for lockdowns and reduce associated losses of up to $1 trillion or about 5% of gross domestic product.42
The very recent survey of the literature released in Sept 2020 concluded this:
Cloth masks are shown to have limited inward protection in healthcare settings where viral exposure is high but may be beneficial for outward protection in low-risk settings and use by the general public where no other alternatives to medical masks are available. During unprecedented times, such as the COVID-19 pandemic, when some organizations like the CDC are suggesting the general population to use cloth masks in public settings, further studies on cloth masks are imperative. The current data are not enough to guide clinical decision-making. Given that cloth masks are used when the supply of surgical masks is low, it is important to assess the true efficacy of cloth masks compared to not wearing any masks.