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Iranian Journal of Medical Sciences، جلد ۴۸، شماره ۳، صفحات ۳۰۲-۳۱۲
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عنوان انگلیسی COVID-19 Reinfection Rate and Related Risk Factors in Fars Province, Iran: A Retrospective Cohort Study
چکیده انگلیسی مقاله Background: Reinfection with Coronavirus Diseases 2019 (COVID-19) has raised remarkable public health concerns globally. Therefore, the present retrospective cohort study intended to investigate COVID-19 reinfection in registered patients of Fars province in Iran from February 2020 to April 2021.Methods: The patients’ data, including the COVID-19 infection, symptoms, comorbidities, and demographics, were collected using the Health Information Systems (HISs). The patients were divided into three groups in terms of the duration between the initial infection and reinfection, including 28-44, 45-89, and more than 90 days. Following the univariate analysis, logistic regression was used to investigate the factors effective on COVID-19 reinfection. Results: A total of 213768 patients had a positive Polymerase Chain Reaction (PCR) test. The reinfection rate was 0.97% (2079 patients). Of these re-infected individuals, 14.9%, 18.5%, and 66.6% had their second positive test 28-45, 45-89, and ≥90 days later, respectively. The mean duration between the initial infection and reinfection was 130.56 days (29-370 days). The chance of reinfection was significantly higher in the youths (Odds Ratio (OR)=2.055; P< 0.001), men (OR=1.283; P< 0.001), urban population (OR=1.313; P< 0.001), and healthcare providers (OR=4.453; P< 0.001). The patients with chronic pulmonary diseases, chronic kidney diseases, and malignancy were 1.421 (P=0.036), 2.239 (P< 0.001), and 3.437 (P< 0.001) times, respectively, more likely prone to reinfection. Conclusion: The results of this study showed that there is a higher risk of reinfection in several vulnerable groups including healthcare providers, young individuals, residents of urban areas, men, and individuals with underlying diseases. 
کلیدواژه‌های انگلیسی مقاله coronavirus, Incidence, Reinfection, COVID-19, Communicable diseases
نویسندگان مقاله Ali Tavakoli |
Research Center for Traditional Medicine and History of Medicine, Department of Persian Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran

Farhad Lotfi |
Health Human Resources Research Center, Department of Health Economics, School of Health Management and Information Sciences, Shiraz University of Medical Sciences, Shiraz, Iran

Mehrzad Lotfi |
Medical Imaging Research Center, Department of Radiology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran

Mohsen Bayati |
Health Human Resources Research Center, Department of Health Economics, School of Health Management and Information Sciences, Shiraz University of Medical Sciences, Shiraz, Iran

Mozhgan Seif |
Department of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran

Mahmood Salesi |
Chemical Injuries Research Ccenter, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran

Mehrnoosh Emadi |
Student Research Committee, School of Health Management and Information Sciences, Shiraz University of Medical Sciences, Shiraz, Iran

Khosro Keshavarz |
Health Human Resources Research Center, Department of Health Economics, School of Health Management and Information Sciences, Shiraz University of Medical Sciences, Shiraz, Iran

Sajad Delavari |
Health Human Resources Research Center, Department of Health Economics, School of Health Management and Information Sciences, Shiraz University of Medical Sciences, Shiraz, Iran

نشانی اینترنتی https://ijms.sums.ac.ir/article_48984_956843f2be09abf7958a827ea385a117.pdf
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