Masks have been shown to be effective. [0] We are not just value signalling when we wear them, we are saving lives. [0] https://www.cdc.gov/coronavirus/2019-nc

Masks have been shown to be effective. [0] We are not just value signalling when we wear them, we are saving lives. [0] https://www.cdc.gov/coronavirus/2019-ncov/more/masking-science-sars-cov2.html https://www.cdc.gov/coronavirus/2019-ncov/more/masking-scien...