The human gut microbiome is relevant to the novel virus infection. The intestinal micro-ecology dominates our immunity. When this micro-ecology is out of balance, we are vulnerable to viruses.

Gut microbiota, which is a fine balance between good and bad bacteria, regulates our immune system. Imbalance in gut microbiota (dysbiosis) will make us susceptible to infections.

The Centre for Gut Microbiota Research of The Chinese University of Hong Kong discovered for the first time worldwide in June 2020 that novel virus patients had missing good bacteria affecting their immunity against infections. 

Using metagenomic sequencing and machine learning, a research team from the Chinese University of Hong Kong School of Medicine found:

There is also sufficient literature to support that lack of these good bacteria will reduce immunity. These findings indicate that novel virus infection can cause major changes in the human microbial flora, and the microbial flora may help the diagnosis, treatment and prevention of novel virus infection.

MORE﹕CU Medicine Develops a Probiotic Formula to Target Imbalance in Gut Microbiota in novel virus

https://www.cpr.cuhk.edu.hk/en/press/cu-medicine-develops-a-probiotic-formula-to-target-imbalance-in-gut-microbiota-in-novel-virus/