I would like some more clarity and statistics on random transmission, the odds of being infected by a total stranger passing by in the street for a second or two. Wasn’t the advice early on that contact would need to be between people sharing a space for 15 minutes or more? How quickly does the virus dissipate in the open air and/or fall to the ground? If I walk in an outdoor space that an infected passer-by had just breathed out into, how likely am I to be infected? What size of viral load is necessary to become ill? We have been told that variant B117 transmits more easily but how?
Everyone I know who had either had Covid themselves or knows someone who has had Covid seems confident of where or from whom they caught it. It is always close indoor environments: either in-hospital transmission, care homes, places where people have to work in close proximity to one another or the family home itself catching it from someone who brought it into the home from work, school or an illegal gathering. I have yet to speak to anyone who has no clue where they, or whoever they know, caught it from. Others may have different anecdotal evidence.
As I posted in another thread, I'd like to see more emphasis on the hands element of Hands, Face, Space. I see most people wearing masks in my local small supermarket but almost no-one stopping to sanitise basket and trolley handles and their own hands.