Quote Originally Posted by Graham Breeze View Post
Mike/Oracle

Have you seen anything that, as a result of tracking/tracing", provides data of the liklihood or not of catching the virus "in the open air" to support the "two metre rule" outside enclosed buildings?

Graham
I have not seen much about risks/cases when outside, apart from recommendations - from 2 metres if stationary, to 20 metres if cycling - running was 10 metres. The 2 metres was because the aerosol only went 1.5 metres, so not a lot of room for error, and no allowance for wind/breeze.
Inside - there were cases 4.5 metres apart on a bus, but there have been doubts expressed about that report - in a restaurant, where being downwind of air conditioning was bad news, and in a call centre, where being anywhere in the same space, well over 2 metres, was grim - and there was that choral group in Washington State where most got it and several died.
There is nothing magic about 2 metres - the further the better - if 10 metres is easy - do it - 20 metres - better still.