COPENHAGEN- A Danish study of 6,000 people suggests face masks provide only moderate protection against COVID-19 infection and could not preclude that they provide no protection at all, Denmark's leading state hospital, Rigshospitalet, said on Wednesday.
(Reporting by Jacob Gronholt-Pedersen; Editing by Catherine Evans) ((copenhagen.newsroom@thomsonreuters.com; +45 3274 2001; Reuters Messaging: jacob.pedersen.thomsonreuters.com@reuters.net))
