Johns Hopkins Bloomberg School of Public Health @JohnsHopkinsSPH

[ "A safer bet — for immune systems young, old, and everywhere in between — is not getting sick to begin with. Wearing masks, maximizing our indoor air’s ventilation and filtration, and other pandemic-era strategies prevent more than just Covid-19." ]

https://twitter.com/JohnsHopkinsSPH/status/1599822177263665170