Want to improve your immune system to fend off COVID-19? Make sure to get plenty of vitamin D. It’s a proven way to boost your immune system.Health Nugget with Kerstin Ferguson R.N., Lincoln Amazing Grace Seventh-day Adventist Church, 3/21/20. camera phonefreehealthimmune systemIMMUNITYincreaseNuggetsharinguploadvideovideo phoneVITAMINvitamin immunityvlogYouTubeRelated Posts Most Colorado counties don’t meet herd immunity for measles January 13, 2026 ADAR1-i-124 switches on antitumor immunity January 13, 2026 Immunity And Energy Top Of Mind For European Supplement Consumers January 13, 2026 Brain immune cells drive persistent negative emotions after repeated binge drinking January 13, 2026 Gamma delta CAR T-cells are being tested to ‘reset’ AAV immune system January 13, 2026 HPV Vaccine Uptake Is Too Low for Herd Immunity January 13, 2026