Multicenter Comparison of Current Practices in CMV and EBV Viral Load Testing using WHO International Standards
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Comparison of the prevalence of HBV, HCV, HIV, CMV and EBV infections in patients with systemic lupus erythromatosus and healthy population
Background: Systemic lupus erythematosus is a systemic autoimmune disease that affects almost all organs of the body, and viral infections are involved in its development and progression. The present study aimed to evaluate the serological status of some viral infections in patients with systemic lupus erythematosus and a healthy population. Methods: This descriptive study conducted from May 2...
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Background: Scleroderma is a chronic systemic disorder that affects the connective tissues. It is characterized by several immune manifestations, inflammation, vascular damage, and fibrosis. Some of the viral infections with complex mechanisms are involved in the development and progression of many autoimmune diseases, such as scleroderma. The present study aimed to investigate the serological ...
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Quantitative real-time PCR (QRT-PCR) has been widely implemented for clinical viral load testing, but a lack of standardization and relatively poor precision have hindered its usefulness. Digital PCR offers highly precise, direct quantification without requiring a calibration curve. Performance characteristics of real-time PCR were compared to those of droplet digital PCR (ddPCR) for cytomegalo...
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PURPOSE Opportunistic viral infections cause increased morbidity and mortality among human immunodeficiency virus (HIV) infected individuals, especially those who are not on antiretroviral treatment. Early diagnosis of these opportunistic viruses will be able to reduce the risk of disease progression with appropriate intervention. MATERIALS AND METHODS Multiplex PCR was attempted to detect th...
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The first WHO international standard for Epstein-Barr virus (EBV) (WHO EBV standard) for nucleic acid amplification technology (NAT)-based assays was commercialized in January 2012 by the National Institute for Biological Standards and Control. In the study reported here, we compared whole-blood EBV DNA load (EDL) results from 12 French laboratories for seven samples (Quality Controls for Molec...
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