News Covid-19: Moving London into tier 3 would be “big mistake,” warns leading epidemiologist BMJ 2020; 371 doi: https://doi.org/10.1136/bmj.m4798 (Published 11 December 2020) Cite this as: BMJ 2020;371:m4798 Read our latest coverage of the coronavirus outbreak Article Related content Metrics Responses Peer review Related articles No related articles found. See more Governments must speed up action to enable access to clean water for all, say UN bodies BMJ March 22, 2023, 380 p694; DOI: https://doi.org/10.1136/bmj.p694 GPs call on health secretary to urgently reconsider imposing contract BMJ March 22, 2023, 380 p693; DOI: https://doi.org/10.1136/bmj.p693 Big Macs and the Beano: Authors’ reply to correspondence BMJ March 22, 2023, 380 p671; DOI: https://doi.org/10.1136/bmj.p671 Safeguarding the equitable distribution of resources BMJ March 22, 2023, 380 p670; DOI: https://doi.org/10.1136/bmj.p670 Supermarket plastic bags and NHS demand management BMJ March 22, 2023, 380 p630; DOI: https://doi.org/10.1136/bmj.p630