Inflammatory effect on the gastrointestinal system associated with COVID-19

World J Gastroenterol. 2021 Jul 14;27(26):4160-4171. doi: 10.3748/wjg.v27.i26.4160.

Abstract

The severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) that causes coronavirus disease-2019 (COVID-19) has provoked a global pandemic, mainly affecting the respiratory tract; however, a percentage of infected individuals can develop gastrointestinal (GI) symptoms. Some studies describe the development of GI symptoms and how they affect the progression of COVID-19. In this review, we summarize the main mechanisms associated with gut damage during infection by SARS-CoV-2 as well as other organs such as the liver and pancreas. Not only are host factors associated with severe COVID-19 but intestinal microbiota dysbiosis is also observed in patients with severe disease.

Keywords: COVID-19; Gastrointestinal symptoms; Gastrointestinal system; SARS-CoV-2.

Publication types

  • Review

MeSH terms

  • COVID-19* / complications
  • Dysbiosis
  • Gastrointestinal Diseases* / virology
  • Gastrointestinal Microbiome*
  • Gastrointestinal Tract
  • Humans
  • Inflammation / virology