Table of contents

Brief communications

• Geo-social gradients in predicted COVID-19 prevalence in Great Britain: results from 1 960 242 users of the COVID-19 Symptoms Study app (29 December, 2020)

  Ruth C E Bowyer, Thomas Varsavsky, Ellen J Thompson, Carole H Sudre, Benjamin A K Murray, Maxim B Freidin, Darioush Yarand, Sajaysurya Ganesh, Joan Capdevila, Elco Bakker, M Jorge Cardoso, Richard Davies, Jonathan Wolf, Tim D Spector, Sebastien Ourselin, Claire J Steves, Cristina Menni
• Longitudinal changes to quadriceps thickness demonstrate acute sarcopenia following admission to hospital for an exacerbation of chronic respiratory disease (22 December, 2020)

  Hamish J C McAuley, Theresa C Harvey-Dunstan, Michelle Craner, Matthew Richardson, Sally J Singh, Michael C Steiner, Neil J Greening
• Blocking LOXL2 and TGFβ1 signalling induces collagen I turnover in precision-cut lung slices derived from patients with idiopathic pulmonary fibrosis (20 January, 2021)

  Ying Wei, Wenting Dong, Julia Jackson, Tsung-Che Ho, Claude Jourdan Le Saux, Alexis Brumwell, Xiaopeng Li, Julia Klesney-Tait, Max L Cohen, Paul J Wolters, Harold A Chapman
• Add-on azithromycin reduces sputum cytokines in non-eosinophilic asthma: an AMAZES substudy (7 January, 2021)

  Shakti D Shukla, Steven L Taylor, Peter G Gibson, Daniel Barker, John W Upham, Ian A Yang, Paul N Reynolds, Sandra Hodge, Alan L James, Geraint B Rogers, Jodie L Simpson