Flow cytometric detection and serotyping of enterovirus for the clinical laboratory |
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| Authors: | Rosemary C. She Sergey N. Preobrazhensky Edward W. Taggart Cathy A. Petti David W. Bahler |
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| Affiliation: | aDepartment of Pathology, University of Utah School of Medicine, Salt Lake City, UT, USA;bAssociated Regional and University Pathologists Laboratories, Salt Lake City, UT, USA;cDepartment of Medicine, University of Utah School of Medicine, Salt Lake City, UT, USA |
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| Abstract: | Culture and serotyping of human enteroviruses by fluorescence microscopy are time-consuming and labor-intensive. Flow cytometry has the potential of being more rapid, sensitive, and objective but has not been used for these purposes in a clinical laboratory. Primary rhesus monkey kidney (PMK) cells were inoculated with several enterovirus serotypes and stained with enterovirus-specific antibodies for flow cytometry and indirect fluorescence antibody testing (IFA). Kinetic studies of coxsackievirus B1 and echovirus 30 infection of PMK cells were performed on days 1–4 after inoculation. Flow cytometry results for echovirus 6, 9, 11, and 30 and coxsackievirus B1 correlated with IFA in all cases. Coxsackievirus B1 and echovirus 30 infections were detected 1 day earlier by flow cytometry than IFA. Flow cytometry can be effectively used for detecting enterovirus-infected cells in a clinical laboratory with the advantages of better quantitation of low levels of infection and earlier detection of virally infected cells in culture systems. |
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| Keywords: | Enterovirus Flow cytometry Serotype |
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