The Effect of Smoking on the Occurrence of COVID-19 and Comparison with Non-Smokers

It seems necessary to do any research on the new Coronavirus, SARS-CoV-2, or its mutant version, which causes acute respiratory syndrome by inducing cytokine storm in individuals and has imposed a great burden on the world during the last year. Smoking is one of the most important known risk factors for severe respiratory diseases and even death. According to studies, about 1.4 to 18% of COVID-19-induced hospitalizations are related to smokers, so both the upper and lower respiratory tract in smokers are more prone to COVID-19 infection. They are also more likely than non-smokers to have more severe respiratory symptoms from COVID-19. Therefore, in recent year, the main goal of researchers is to recommend prevention and treatment strategies for vulnerable people with underlying diseases.This study aimed to investigate the mechanism of irreversible effects of smoking on the respiratory system and exacerbation of the emerging infectious disease COVID-19 and compare it with non-smokers.