BBC News – Coronavirus: Can we stay safe as lockdown eases?
As lockdowns are eased all over the world, what are the risks of getting infected as people come into closer contact with each other?
It’s a question that scientists have been exploring in a variety of settings including restaurants and offices.
It comes amid pressure from businesses, such as pubs, to be allowed to reopen.
But the influence is also coming from people wondering if the rules are too strict.
What are the key factors?
The most obvious is distance.Research that began in the 1930s showed that when someone coughs, most of the droplets they release either evaporate or fall to the ground within about one metre.
That’s why the World Health Organization (WHO) settled on its “one metre” rule for social distancing.