Letters
Covid-19 airborne transmission
Airborne transmission of covid-19: reduce the viral load in inhaled air
BMJ 2021; 373 doi: https://doi.org/10.1136/bmj.n1198 (Published 12 May 2021) Cite this as: BMJ 2021;373:n1198
- Graham J Walker, consultant anaesthetist1,
- Stephen Foster, nuclear ventilation engineer (retired)2
- 1Caithness General Hospital, Wick, UK
- 2Thurso, UK
- graham.walker4@nhs.scot
The editorial by Tang and colleagues provides food for thought about long term control of covid-19.1 The World Health Organisation’s roadmap to improve and ensure good indoor ventilation is a starting point.2
Reduction of transmission by reducing the viral load in inhaled air offers a long term control measure. This is achieved by ventilation of indoor spaces. Building design has tended to isolate indoor spaces from the outside air, for the comfort of occupants …
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