Laith Alkhouri @MENAanalyst
#MicroDroplets...they stay in the air in closed environments for up to 20 minutes and can be emitted during conversations. Something to keep in mind. #COVID19 — PolitiTweet.org
NHK WORLD News @NHKWORLD_News
An NHK experiment found that microdroplets emitted while sneezing and coughing and during conversations stay in the… https://t.co/4iQDHRM4xO