Journal
JOURNAL OF CLINICAL VIROLOGY
Volume 58, Issue 3, Pages 548-552Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jcv.2013.08.034
Keywords
Immunochromatographic test; Enterovirus 71; Children
Categories
Funding
- Centers for Diseases Control of Taiwan
- Chang Gung Memorial Hospital [XMGPG 3B0291]
- Formosa Biomedical Technology Corporation of Taiwan
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Background: Enterovirus 71 (EV71) causes frequent outbreaks worldwide, particularly in the Asia-Pacific area. Its quick spread is a critical challenge for public health and timely preventive measures and clinical management therefore rely on early detection. There is a need for a rapid, easy-to-use, and reliable method for detecting EV71 infections. Objective: The study aimed to evaluate a bedside immunochromatography (ICT) kit for diagnosing acute EV71 infection in children. Study design: Pediatric patients with herpangina or hand-foot-mouth disease were randomly and prospectively enrolled from hospitals across Taiwan. Throat or rectal swabs were collected for viral culture and reverse-transcriptase polymerase chain reaction (RTPCR). For the ICT kit, whole blood was obtained by ear piercing, finger-sticking, or venipuncture. The results of ICT, virus isolation and RTPCR in clinical samples were compared. Results: Of the 156 patients enrolled, 91 (58%), 64 (41%) and 72 (46%) had positive results of the ICT kit, viral culture and RTPCR, respectively. Laboratory-confirmed infection with either positive EV71 culture or RTPCR was used as the diagnostic standard. The sensitivity and specificity of the ICT kit was 84% and 77%, respectively. The viral culture and RTPCR had relatively lower sensitivity but higher specificity. The patient's age did not affect the performance of the ICT, viral culture and RTPCR. However, a low sensitivity of ICT kit was noted before the second day of disease onset. Conclusions: The ICT kit may serve as a simple, quick and reliable method for the bedside diagnosis of acute EV71 infection in children. (C) 2013 Elsevier B. V. All rights reserved.
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