Mask Effectiveness Against Coronavirus Varies Posted on 10/30/2020 by Corts Virologists at the University of Tokyo say that while masks can offer protection from airborne COVID-19 particles, their effectiveness varies. VOA Correspondent Mariama Diallo has more on the results of the new research. … Click to share on Telegram (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on X (Opens in new window)