Association Between Host Gut Microbiota and SARS-CoV-2 Infection

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a novel coronavirus that causes coronavirus disease 2019 (COVID-19). Since its emergence in December 2019, it has infected millions of people around the world. On January 30, 2020, the epidemic was announced as the Public Health Emergency of International Concern by the World Health Organization.1 Although the majority of studies have concentrated on respiratory symptoms findings, the potential role of gut microbiota in the development of the clinical features of COVID-19 has been documented as well.