 The novel coronavirus, SARS-CoV-2, was first identified in Wuhan, China in December 2019. Since then, it has become a global pandemic with countries in the Northern Hemisphere experiencing higher mortality rates than those in the Southern Hemisphere. Older adults are more likely to die from this virus because they have weaker Indian systems and are more susceptible to other medical conditions such as cardiopulmonary and metabolic disorders. Additionally, many older adults suffer from low levels of vitamin D, which can further weaken their immune system and make them more vulnerable to the virus. Research suggests that vitamin D plays a key role in regulating the body's immune response to viruses, making it important to maintain adequate levels of vitamin D during times of heightened risk. This article was authored by Paula Mache, Tomas P. Griffin, Michelle Brennan, and others.