en پژوهشی اصيل Original Research <span style="font-size:10pt"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span cambria="" style="font-family:"><span style="color:black">Aims:</span></span></b><b> </b><span cambria="" style="font-family:"><span style="color:black">COVID-19 is associated with infection and high death rate. The unresolved questions about the fatality rate of COVID-19 is most probably related to cytokine storm syndrome. There is currently no specific medication. Understanding the laboratory diagnostic tests will&nbsp;lead to&nbsp;the production&nbsp;of treatment and decreases of death rate. The aim of this study was to&nbsp;investigate the changes of peripheral blood parameters (Interleukin-6, Ferritin and hematological parameters) in COVID-19 patients</span></span></span></span></span><br> <span style="font-size:10pt"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span cambria="" style="font-family:"><span style="color:black">Materials & Methods:</span></span></b><span cambria="" style="font-family:"><span style="color:black"> In this </span></span><span cambria="" lang="EN" style="font-family:"><span style="color:black">descriptive-comparative study</span></span><span cambria="" style="font-family:"><span style="color:black">, data was collected from 270 subjects in two groups according to RT-PCR test results, including 133 COVID-19 patients and 137 non-COVID-19 patients, between March 20 and May 21, 2020. The clinical characteristics and laboratory findings of patients were collected from electronic Health Information Systems using data collection forms in Shahid Jalil Hospital of Yasuj University of medical sciences, Yasuj, Iran. The data were analyzed by SPSS software version 20. Chi-square, Mann-Whitney tests and Pearson&#39;s correlation coefficient were used to analyze the data.</span></span><b><span cambria="" style="font-family:"><span style="color:black"></span></span></b></span></span></span><br> <span style="font-size:10pt"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span cambria="" style="font-family:"><span style="color:black">Findings: </span></span></b><span cambria="" style="font-family:"><span style="color:black">There were no significant differences in the age and sex ratio between two groups. The mean IL-6 and Ferritin levels and hematological parameters between COVID-19 and non-COVID-19 patients were significantly different (p=0.001).</span></span></span></span></span><br> <span style="font-size:10pt"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span cambria="" style="font-family:"><span style="color:black">Conclusion:</span></span></b><span cambria="" style="font-family:"><span style="color:black"> The coronavirus affects the inflammatory markers specifically IL-6 and Ferritin and hematological parameters (WBC, Lymphocytes, Neutrophils, Platelet and Hb). </span></span></span></span></span><br> <span style="font-size:10pt"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><span cambria="" style="font-family:"><span style="color:black"></span></span></span></span></span><br> &nbsp; COVID-19, Infection, Proinflammatory Cytokines, Interleukin-6, Ferritin 149 154 http://jccs.yums.ac.ir/browse.php?a_code=A-10-191-1&slc_lang=en&sid=1 P. Yazdanpanah p.yazdanpanah@yahoo.com 10031947532846004655 10031947532846004655 No Departments of Physical Medicine and Rehabilitation, Faculty of Medicine, Yasuj University of Medical Sciences, Yasuj, Iran F. Vafaei Vafaei.f@gmail.com 10031947532846004656 10031947532846004656 No Departments of Pediatrician, Faculty of Medicine, Yasuj University of Medical Sciences, Yasuj, Iran S. Afrouz s.afrouz92@gmail.com 10031947532846004657 10031947532846004657 Yes Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran