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Abstract

The covid-19 disease is a systemic and respiratory disease common between humans and animals. It was caused by a virus from the coronavirus family and led to a global pandemic in such a way that it has challenged modern medical science in most aspects. In this study, 200 people were evaluated, and finally, 50 people were included in the study. Patients were divided into mild and severe groups based on the country's protocol. Then demographic information, clinical symptoms, duration between the onset of symptoms and the diagnosis of the disease, duration of hospitalization, and laboratory findings were extracted from the patient files and analyzed. The average number of lymphocytes in the mild group was 2302, and in the severe group was 3699, and there was a significant difference between these two groups. The mean of CRP (C-reactive protein) in the mild group was 32.88, and in the severe group was 13.20, and there was a significant difference between these two groups. In this study, we concluded that there is a direct relationship between the severity of the disease, the number of neutrophils, and the level of CRP, and the number of neutrophils has an inverse relationship, and there is a direct relationship between the severity of the disease, the time of onset of symptoms, and the duration of hospitalization‎.