David Fisman – The Conversation

EPA-EFE/VICKIE FLORES

May 22, 2024

Masks work, our comprehensive review has found

Trish Greenhalgh, University of Oxford; C Raina MacIntyre, UNSW , and David Fisman, University of Toronto

A previous review suggested that masks don’t work. We can assure you – they do.

Masque de type respirateur (N95) et chirurgicaux (ici) n'ont pas les mêmes usages. Cryptographer/Shutterstock

February 13, 2023

Utiles ou non : le point sur l'efficacité des masques contre le Covid

C Raina MacIntyre, UNSW ; Abrar Ahmad Chughtai, UNSW ; David Fisman, University of Toronto, and Trish Greenhalgh, University of Oxford

Une nouvelle publication a laissé entendre que les masques chirurgicaux seraient « peu efficaces » face au Covid. Des experts soulèvent les défauts de ce travail et rappellent les faits.

Pexels/Uriel Mont

February 6, 2023

Yes, masks reduce the risk of spreading COVID, despite a review saying they don’t

C Raina MacIntyre, UNSW ; Abrar Ahmad Chughtai, UNSW ; David Fisman, University of Toronto, and Trish Greenhalgh, University of Oxford

An updated Cochrane Review suggests face masks don’t reduce the spread of COVID in the community. But there are several reasons why this conclusion is misleading.

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