���The evidence of the benefit of using a face
covering to protect others is weak and
the effect is likely to
be small���.
HM Government
From ���Keeping workers and customers safe during COVID-19 in restaurants, pubs,
bars and takeaway services. Covid-19 secure guidance for employers, employees
and the self-employed 23 June 2020���
P.35
https://assets.publishing.service.gov.uk/media/5eb96e8e86650c278b077616/Keeping-workers-and-customers-safe-during-covid-19-restaurants-pubs-bars-take...
Published on June 25, 2020 04:29