Mask usage helps slightly with reducing influenza transmission. Hand hygiene does not - eviltoast
The use of masks and respirators to prevent transmission of influenza: a systematic review of the scientific evidence
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Please cite this paper as: bin‐Reza et al. (2012) The use of masks and respirators to prevent transmission of influenza: a systematic review of the scientific evidence. Influenza and Other Respiratory Viruses 6(4), 257–267.There ...