Fact: vitamin d is crucial for T-cell immunity - "Another reason vitamin D is important: It gets T cells going - Scientific American Blog Network" https://blogs

Fact: vitamin d is crucial for T-cell immunity - "Another reason vitamin D is important: It gets T cells going - Scientific American Blog Network" https://blogs.scientificamerican.com/observations/another-reason-vitamin-d-is-important-it-gets-t-cells-going/ https://blogs.scientificamerican.com/observations/another-re... Fact: proper T-cell immunity is how you get a mild / asymptomatic covid form