Do We Still Need to Keep Wearing Masks Outdoors? Science shows that the risk of viral transmission outside is very low. The “two-out-of-three rule” can help you decide whether to mask up. https://ift.tt/eA8V8J https://www.nytimes.com

Science shows that the risk of viral transmission outside is very low. The “two-out-of-three rule” can help you decide whether to mask up.

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