@Iainwithtwoiis @TanjaBueltmann Yes they do. But we're talking about N95/FFP2, not surgical masks. https://t.co/9XqNKkVXHZ
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@SteveeeeeP @mstewart999 @DanielAndrewsMP ... ineffective. See for example this: https://t.co/N67h2hB2s7 "The consistent use of FFP2/N95 ... able to prevent work-related SARS-CoV-2 infections ... " or this: " If both ... wear ... FFP2 masks, the ... risk
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RT @Dana_Maresa_: @commonsense312 Kennen Sie pubmed ? https://t.co/FLY232V3ka https://t.co/A3qzBbg8tX Gruselig, dass es Evidenz eben do…