SARS-CoV-2, the virus that causes COVID-19, invades the cells of multiple organs via the ACE2 receptor. Once the virus attaches to the receptor on the cell, it undergoes replication and maturation, provoking an inflammatory response by various cytokines in some patients. What is worse, the long-term effects of post-COVID syndrome (namely ‘Long COVID’) could have a further devastating effect. The virus might even interact with ACE 2 in digestive organs, causing further damage to the mucous membrane barrier and resulting in ‘leaky gut’.