id author title date pages extension mime words sentences flesch summary cache txt cord-321664-3qlfsei6 Somsen, G Aernout Small droplet aerosols in poorly ventilated spaces and SARS-CoV-2 transmission 2020-05-27 .txt text/plain 1244 59 55 title: Small droplet aerosols in poorly ventilated spaces and SARS-CoV-2 transmission Globally, health-care authorities are searching for effective measures to prevent community transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, aerosols containing a small concentration of virus in poorly ventilated spaces, combined with low humidity and high temperature, 6 might result in an infectious dose over time. To better understand the spreading of respiratory droplets and possible preventive measures, we analysed droplet production due to coughs and speech by measuring the droplet size distribution, travel distance and velocity, and the airborne time in relation to the level of air ventilation. Although we only studied healthy volunteers and did not study patients with COVID-19 or virus-laden aerosol droplets directly, our data on droplet size distribution and persistence does have implications on requirements to use face masks to prevent virus transmission. The persistence of small respiratory droplets in such poorly ventilated spaces could contribute to the spread of SARS-CoV-2. ./cache/cord-321664-3qlfsei6.txt ./txt/cord-321664-3qlfsei6.txt