Note also: 'The ... infected person starts to spread [the virus] to others simply by breathing, talking or coughing.' which distorts the findings of yet another study. Seems to be a trend https://twitter.com/measure7x/status/1246175470007324673

For a much more sober review of the current literature on this topic, see this thread: https://twitter.com/MackayIM/status/1246311898267529216