personal protective medical 3ply face mask sale convenient design use in germany market

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  • Using face masks in the community - European Centre for ...

    2020-4-8 · mask use by asymptomatic persons can be regarded as an extension of the current practice of face mask use by symptomatic individuals. There is conflicting evidence on the protective effect for the wearer of medical face masks for influenza-like illness (ILI) and laboratory-confirmed influenza in household settings [5,15,18,19]. Based on the lack of

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