Why do some people have a less difficult time with COVID-19, while others end upin the hospital, fighting for their lives? Why do some escape being infected by thevirus altogether? The strength of a person''s immune system is one answer. There aresimple, logical things we can do to strengthen our immune systems against newdiseases like COVID-19. Doctors McComsey and Myers are at the forefront ofSARS-CoV-2 research and have written a book that outlines exactly what we all cando. Physicians and scientists have recently discovered a pattern among thoseexperiencing the best COVID-19 outcomes: these people have optimal amounts of twokey micronutrients, vitamin D and vitamin K2. While they don''t prevent COVID-19,these two vitamins can help your immune system better deal with the disease. Recentstudies show that lung damage and thromboembolism, two of the most serious COVID-19outcomes, have been linked to deficiencies in vitamins D and K2. In Simplifying theCOVID Puzzle, the authors simply and clearly explore how vitamins D and K2 act as alow-risk, proactive supplement combination.