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.
Related
-
COVID-19 Pandemic
US Coronavirus Cases Surpass 9 Million
-
COVID-19 Pandemic
US College Campus Gets COVID-19 Warning from Wastewater
-
COVID-19 Pandemic
How Bats and COVID Canceled Halloween