en تخصصي Special سرمقاله Editorial Dear Editor<br> Biological events can rapidly spread throughout the world. The COVID-19 pandemic once again affirmed that the emergence of infectious agents could occur anytime and anywhere worldwide due to international travels and commercial relationships [1]. The pandemic of COVID-19 showed that despite the advances in medical sciences, the outbreak of unknown diseases is probable at any time [2]. 59 62 http://hdq.uswr.ac.ir/browse.php?a_code=A-10-396-1&slc_lang=en&sid=1 Arezoo Yari yariarezoorose@gmail.com https://orcid.org/0000-0002-5322-9971 No Social Determinants of Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran. Mohamad Esmaeil Motlagh Dr.motlagh.ms@gmail.com 0000-0002-6101-548X No Department of Pediatrics, Faculty of Medicine, Ahvaz Jundishapur, University of Medical Sciences, Ahvaz, Iran. Yadolah Zarezadeh y.zarezadeh@muk.ac.ir https://orcid.org/0000-0001-9311-0038 Yes Social Determinants of Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran.