RT @DrDenaGrayson: ⚠️@MIT's Dr. Lydia Bourouiba warns: “pathogen-bearing droplets of ALL sizes can travel 23-27 feet.” She also warns: “dr… 0 atbildes
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cosmix (2020-04-01 00:44:10) |
RT @DrDenaGrayson: ⚠️@MIT's Dr. Lydia Bourouiba warns: “pathogen-bearing droplets of ALL sizes can travel 23-27 feet.” She also warns: “dr… | |