RT Journal Article SR Electronic T1 Gut as viral reservoir: lessons from gut viromes, HIV and COVID-19 JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1605 OP 1608 DO 10.1136/gutjnl-2021-324622 VO 70 IS 9 A1 Markus F Neurath A1 Klaus Überla A1 Siew C Ng YR 2021 UL http://gut.bmj.com/content/70/9/1605.abstract AB