Vitamin D insufficiency in COVID-19 and influenza A, and critical illness survivors: a cross-sectional study

JOURNAL ARTICLE published October 2021 in BMJ Open

Research funded by Medical Research Council (MC_PC_19059,MR/R005982/1) | National Institute for Health Research (CS-2016-16-011) | Wellcome (205228/Z/16/Z,215091/Z/18/Z) | National Institute for Health Research (CO-CIN-01)

Authors: Emma A Hurst | Richard J Mellanby | Ian Handel | David M Griffith | Adriano G Rossi | Timothy S Walsh | Manu Shankar-Hari | Jake Dunning | Natalie Z Homer | Scott G Denham | Kerri Devine | Paul A Holloway | Shona C Moore | Ryan S Thwaites | Romit J Samanta | Charlotte Summers | Hayley E Hardwick | Wilna Oosthuyzen | Lance Turtle | Malcolm G Semple | Peter J M Openshaw | J Kenneth Baillie | Clark D Russell