WHO Covid-19 expert claims two-metre distance 'safe 99% of time' and masks will be 'big issue'

The World Health Organisation's (WHO) Special Envoy on Covid-19, Dr David Nabarro, has said the two-metre guidance to stop the transmission of Covid-19 "keeps you safe 99% of the time".

However, Dr Nabarro also said you can "greatly reduce your risk by maintaining a one-metre distance."