All viruses need a host to survive and replicate. We discuss the cells that are important in improving the resistance of the host and action steps that you can take now to support the immune system. actionbuildcoronaCoronaviruscoronavirus immune systemcoronaviruspreventionCOVID-19COVID19IMMUNEimmune supportimmune systemIMMUNITYnatural killer cellsstepsSYSTEMth1videoVIRUSVITAMINvlogYouTubeRelated Posts Did Your Allergies Get Worse After COVID? Watch This February 26, 2026 There may be a universal vaccine in the future. #science #vaccine #doctor February 21, 2026 The Immune Shift No One Explains After COVID February 19, 2026 Doctor Reacts: Covid masks in 2026?! February 19, 2026 ‘Particularly capricious’: Doctor weighs in on undermining of mRNA technology February 15, 2026 COVID’s Hidden Impact: Immune System Triggers Explained #shorts January 30, 2026