RT Journal Article SR Electronic T1 Lessons of the month: Co-infection with SARS-CoV-2 and influenza B virus in a patient with community-acquired pneumonia JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP e262 OP e263 DO 10.7861/clinmed.2020-0598 VO 20 IS 6 A1 Abigail Coutinho A1 Afrah Riaz A1 Annabel Makan A1 Emma Crawford A1 Devapriya Dev A1 Koottalai Srinivasan A1 Nawaid Ahmad A1 Harmesh Moudgil YR 2020 UL http://www.rcpjournals.org/content/20/6/e262.abstract AB Why we only infrequently detect or report two or more respiratory viruses co-infecting an adult host is poorly understood. We report a rare case where influenza B and SARS-CoV-2 caused viral pneumonia in a 74-year-old man diagnosed during the UK winter epidemic/pandemic for these organisms and discuss concepts of co-infection.