International Journal of Preventive Medicine (Int J Prev Med)2008-78021472023091928562856ENCellular and Molecular Research Center, Gerash University of Medical Sciences, Gerash, Iran20230919Dear Editor, It has been a year since the World Health Organization (WHO) reported the emergence of a new virus in December 2019 following the outbreak of the severe respiratory disease in China. Subsequently, the virus causing the pandemic was called COVID‑19.[1,2] According to a report by the WHO on December 8, 2021, approximately, 2 years after the onset of the COVID‑19 pandemic, the virus has infected more than 266 million people and killed more than 5 million people worldwide.http://ijpm.mui.ac.ir/index.php/ijpm/article/view/2856http://ijpm.mui.ac.ir/index.php/ijpm/article/download/2856/717718679