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Published on: November 8, 2011
Comparison of Methods Used for the Diagnosis of Epstein-Barr Virus Infections in Children
Nilgun Kasifoglu1, Semra Oz2, Ener Cagri Dinleyici3
1Department of Medical Microbiology, Eskisehir Osmangazi University, Faculty of Medicine,Eskisehir,Turkey.
Insights
Accurate Epstein-Barr virus (EBV) diagnosis is crucial. This study compared IFA, ELISA, immunoblotting, and Real-time PCR in pediatric patients, finding method choice depends on patient factors and lab capabilities.
Area of Science:
- Medical Microbiology
- Virology
- Infectious Diseases
Background:
- Accurate diagnosis of Epstein-Barr virus (EBV) infections is challenging due to symptom overlap with other conditions.
- Effective diagnostic strategies are essential for appropriate patient management.
Purpose of the Study:
- To compare the diagnostic performance of IFA, ELISA, immunoblotting, and Real-time PCR for Epstein-Barr virus (EBV) detection in pediatric patients.
- To evaluate the agreement rates and diagnostic accuracy of various serological and molecular methods against IFA.
Main Methods:
- Sera from pediatric patients with suspected EBV infection were analyzed using IFA, ELISA, immunoblotting, and Real-time PCR.
- The performance of ELISA, immunoblotting, and Real-time PCR was evaluated in comparison to IFA.
- Agreement rates, sensitivity, and specificity were calculated for each diagnostic method.
Main Results:
- ELISA showed high agreement with IFA for seronegative, acute primary, and past infections, but lower agreement for late primary infection.
- Immunoblotting demonstrated variable agreement with IFA across different infection stages, with higher sensitivity but lower specificity for certain antibodies compared to ELISA.
- Real-time PCR exhibited 56.25% sensitivity and 97.89% specificity for detecting viremia in acute primary EBV infection.
Conclusions:
- The choice of diagnostic method for Epstein-Barr virus (EBV) infection should consider patient demographics and available laboratory resources.
- Each method (IFA, ELISA, immunoblotting, Real-time PCR) has distinct performance characteristics that influence its utility in diagnosing EBV.
- Optimizing EBV diagnosis requires a tailored approach based on comparative analysis of test performances.
Abstract:
The accurate diagnosis of Epstein-Barr virus (EBV) infections is important, as many other infectious agents or diseases can cause similar symptoms. In this study, sera of pediatric patients who were suspected to have an EBV infection, were sent to Eskisehir Osmangazi University Faculty of Medicine, Department of Clinical Microbiology, and investigated by IFA, ELISA, immunoblotting and Real-time PCR. The performances of these tests were compared with IFA. The rates of agreement between ELISA and IFA were found as 100% for seronegative, 100% for acute primary infection, 22.2% for late primary infection, 92.1% for past infection. The rates of agreement between immunoblotting and IFA were found as 80.8% for seronegative, 68.8% for acute primary infection, 55.6% for late primary infection, 86.6% for past infection. The sensitivity of immunoblotting for anti-VCA IgM was identical with ELISA, and higher for anti-VCA IgG, anti-EBNA IgG, anti-EA antibodies, while the specificity of immunoblotting for these antibodies were found to be lower. The sensitivity and specificity of Real-time PCR for detection of viremia in acute primary infection were found as 56.25% (9/16) and 97.89% (139/142), respectively. The diagnostic methods should be chosen by evaluating the demographic characteristics of patients and laboratory conditions together.
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