Corrections
The BMJ Interview: Tim Spector on how data can arm us against covid-19
BMJ 2020; 371 doi: https://doi.org/10.1136/bmj.m4123 (Published 29 October 2020) Cite this as: BMJ 2020;371:m4123
We have amended this article (BMJ 2020;371:m3921, doi:10.1136/bmj.m3921, published 14 October 2020) to note that anosmia was first identified as a covid symptom by clinical reports from Italy, Belgium, and a group of UK consultants led by Claire Hopkins, rather than by the Covid Symptom Study app.