FILE - In this Friday, March 20, 2020 file photo, passengers wearing face masks travel on a Piccadilly Line underground train in London. The World Health Organization on Friday June 5, 2020, broadened its recommendations for the use of masks during the coronavirus pandemic and is now advising that in areas where the virus is spreading, people should wear fabric masks when social distancing is not possible, such as on public transport and in shops. (AP Photo/Matt Dunham, File)
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