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Prof. Carl Heneghan On Masks

  • Masks and gloves have been shown in studies to help in the medical setting but not in the home setting.
  • Cloth masks are worse and may increase infection.
  • Masks in the UK were supposed to reduce infections by 40% but in fact, infections went up.
  • Study in Norway: 200,000 people would have to wear a mask in order to prevent one infection. Public health impact of mask wearing is negligible.
  • This advocating mask-wearing have cherry-picked low-quality observational evidence to suit the evidence.

Carl Heneghan is a clinical epidemiologist with expertise in evidence-based medicine, research methods, and evidence synthesis.
He is Director of the NIHR SPCR Evidence Synthesis Working Group a collaboration of nine primary care departments across UK universities. He set up and directs the Oxford COVID Evidence Service, has over 400 peer-reviewed publications (current H Index 67); published 95 systematic reviews. He is Editor in Chief of BMJ Evidence-Based Medicine, and Editor of the Catalogue of Bias.

Director of CEBM & Programs in EBHC
Editor in Chief, BMJ EBM
NHS Urgent Care GP
NIHR Senior Investigator