239 RED FLAG: University of Maryland: "Study shows N95 masks near-perfect at blocking escape of airborne COVID-19"⸻This study is going to be used as the sole justification to bring back masking (sph.umd.edu) posted 157 days ago by nothingberg 157 days ago by nothingberg +239 / -0 89 comments share 89 comments share save hide report block hide replies
What about the bird flu?