I have been researching vitamin D3 and other effective natural approaches to dealing with viral infections such as the cold and flu for over 14 years. My intensive interest started back in 2006 timeframe when I read an article (https://www.darkintelligencegroup.com/the-dark-report/clinical-laboratory/doctor-notices-different-vitamin-d-results-over-time/ registration needed) about Dr. John Cannell. He worked in a max security psychiatric prison hospital…