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Mozhgani SH, Rajabi F, Qurbani M, Erfani Y, Yaslianifard S, Moosavi A, Pourrostami K, Baradaran Bagheri A, Soleimani A, Behzadian F, Safavi M, Rezaei F. Human Herpesvirus 6 Infection and Risk of Chronic Fatigue Syndrome: A Systematic Review and Meta-Analysis. Intervirology 2021; 65:49-57. [PMID: 34348314 DOI: 10.1159/000517930] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 06/17/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Chronic fatigue syndrome (CFS) is a neurological disease that is accompanied by excessive fatigue or tiredness. There are several reports confirming the association between human herpesvirus 6 (HHV-6) infection and CFS illness. This systematic review and meta-analysis was performed to integrate the information of published studies with regard to this association until May 2021. METHODS The literature search was based on keywords including "chronic fatigue syndrome and HHV 6," "chronic fatigue syndrome and HHV-6," "chronic fatigue syndrome and HHV6," "chronic fatigue syndrome and Herpes virus 6," and "chronic fatigue syndrome and Herpesvirus6" in MEDLINE (PubMed), Web of Science, and EMBASE. RESULTS The literature search identified 17 studies to be included in the systematic review and 11 studies in meta-analysis. The symmetry funnel plot and Egger's test (p value = 0.2) identified no publication bias among studies. Moreover, the low level of I2 revealed homogeneity across studies. DISCUSSION In conclusion, the association between the HHV-6 infection and CFS incidence was substantiated. However, the results of this study also suggest that further comprehensive studies are needed to solidify the association between HHV-6 and CFS. Future studies should consider additional factors that may have affected the significance of such a correlation.
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Affiliation(s)
- Sayed-Hamidreza Mozhgani
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran.,Department of Microbiology, Faculty of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Farid Rajabi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Qurbani
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Yousef Erfani
- Department of Medical Laboratory Sciences, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Somayeh Yaslianifard
- Department of Microbiology, Faculty of Medicine, Alborz University of Medical Sciences, Karaj, Iran.,Dietary Supplements and Probiotic Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Azam Moosavi
- Department of Biochemistry, Faculty of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Kiomars Pourrostami
- Department of Pediatrics, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Ali Baradaran Bagheri
- Department of Neurosurgery, Madani Hospital, Alborz University of Medical Sciences, Karaj, Iran
| | - Alireza Soleimani
- Department of Infectious Disease, Alborz University of Medical Sciences, Karaj, Iran
| | - Farida Behzadian
- Department of Bioscience and Biotechnology, Malek Ashtar University of Technology, Tehran, Iran
| | - Mahshid Safavi
- Student Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Farhad Rezaei
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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