Srpski arhiv za celokupno lekarstvo 2011 Volume 139, Issue 11-12, Pages: 759-764
https://doi.org/10.2298/SARH1112759R
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Detection of enteroviruses in clinical samples of patients with aseptic meningitis by rapid antigen detection assay
Radovanov Jelena (Centar za virusologiju, Institut za javno zdravlje Vojvodine, Novi Sad)
Milošević Vesna (Centar za virusologiju, Institut za javno zdravlje Vojvodine, Novi Sad)
Radnović Dragan (Prirodno-matematički fakultet, Novi Sad)
Jerant-Patić Vera (Centar za virusologiju, Institut za javno zdravlje Vojvodine, Novi Sad)
Hrnjaković-Cvjetković Ivana (Centar za virusologiju, Institut za javno zdravlje Vojvodine, Novi Sad)
Kovačević Gordana (Centar za virusologiju, Institut za javno zdravlje Vojvodine, Novi Sad)
Introduction. Human enteroviruses represent the most common etiological
agents of aseptic meningitis. Rapid diagnosis of aseptic meningitis affects
the management of patients. Objective. The aim of this work was to assess the
efficacy of rapid antigen detection (RAD) assay for the confirmation of human
enteroviruses in comparison to that of the conventional cell culture (CCC),
and to identify the serotypes associated with aseptic meningitis cases in the
Autonomous Province of Vojvodina. Methods. RAD assay was carried out using
centrifugation of inoculated Vero, RD and HEp-2 cell cultures and indirect
immunofluorescence with Pan-Enterovirus 2E11 reagent (Millipore-Chemicon).
CCC was performed using the same type of cells and the same
immunofluorescence reagent for enterovirus confirmation. Results. Out of 70
analyzed samples (29 cerebrospinal fluid specimens, 27 stool specimens, 9
rectal and 5 throat swabs) , 36 (51.4%) were positive by immunofluorescence
after CCC and 34 (48.6%) by the RAD assay. The sensitivity of RAD assay was
94.4% and specificity 100%. Detection time of enteroviruses by the RAD assay
was 3 days, and by CCC varied from 3 to 13 days (mean time 6.1 days). Within
72 h from inoculation, a cytopathic effect (CPE) occurred in only 19 (47.5%)
of 40 CPE positive samples. Serotyping revealed 11 types of enteroviruses:
coxsackievirus A16, B3, B4, B5, and echovirus 2, 4, 6, 11, 13, 16 and 30.
Conclusion. The RAD assay was slightly less sensitive than CCC and
significantly shortened the detection time of enteroviruses, so it may be
useful in rapid diagnosis of enteroviral meningitis.
Keywords: enterovirus, aseptic meningitis, cell culture