Study of the Relationships between COVID-19, Associated Diseases, and Vitamins

ABSTRACT

Background: Some vitamins play a beneficial role in the immune system and certain diseases may be associated with an increase in the number of COVID-19 cases and mortality. Objective(s) In this work, we aim to verify a possible relationship between vitamin A, vitamin D, sunlight, and COVID-19 cases and mortality. We also aim to study the relationship between chronic diseases and COVID-19 in the world. Method(s) We consulted online databases (Johns Hopkins, World Life Expectancy, NASA, and World Health Organization) and used SPSS (v23) for statistical analysis. Result(s) We found that countries with the highest number of cases and deaths by COVID-19 are the countries with the highest death rates from different types of cancer and multiple sclerosis. Besides, the relationship between cancer death rate and COVID-19 is not biased by the life expectancy. We also found that the low solar incidence and low vitamins A and D levels can be related to the number of cases and deaths by COVID-19. Conclusion(s) Our findings suggest a relationship between different cancer types and multiple sclerosis death rates and COVID-19. We also recommend that vitamins D and A may play a protective role in COVID-19 infection.Copyright © 2021 Bentham Science Publishers.