At the most basic level, variants of any virus arise from mutations and can happen within a host (a living being). If it is a cloth mask, make sure that it's multi-layered with a filter. Those are the ones you should strive for versus the cloth mask. Loading... Loading... Loading... Loading... Loading... Loading...What we can lean on is the precautionary principle of six feet and that being indoors is more high risk than being outdoors. In the context of being outdoors, you should still at least wear a cloth mask, as a tool to lower risk.

Source: thestar February 06, 2021 17:04 UTC