In conclusion, probiotics can adjust the microbial ecology, regulate the immune system, and enhance resistance. Its mechanism of action is that in addition to maintaining the integrity of the tight junctions between intestinal cells and creating a protective barrier, probiotics can also initiate immune cells to produce interferons and a series of cytokines and interleukins, and stimulate specific CD4 and CD8 leukocytes, macrophages, natural killer cells, B lymphocytes, and other immune System members fight viruses.There arelocal scientific research companies specializing in probiotic products in Hong Kong. Among them, there have been breakthroughs in the research of L. plantarum GKM3 probiotic strains, and the patented technology has won awards and approvals. Ongoing scientific research and development will be able to “to reserve health” for the health of people. To enhance the body’s resistance, the public can choose probiotic products with anti-gastric acid and anti-bile salt properties. They also need to pay attention to the packaging technology of the products to ensure the survival of probiotics. It is safe and effective to help you improve your resistance, and it is your best partner for disease resistance.References: Olaimat AN et al. The potential application of probiotics and prebiotics for the prevention and treatment of COVID-19. NPJ Sci Food. 2020 Oct 5;4:17.Chong HX et al. Lactobacillus plantarum improved upper respiratory tract infections via enhancing immune and inflammatory parameters: A randomized, double-blind, placebo-controlled study. J Dairy Sci. 2019 Jun;102(6):4783-4797.