Bedside immunochromatographic test for enterovirus 71 infection in children

Kuan Ying Arthur Huang, Shuan Yang, Kuo Chien Tsao, Chih Jung Chen, Yu Chia Hsieh, Cheng Hsun Chiu, Juo Yu Hsieh, Jyh Yuan Yang, Yhu Chering Huang*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

4 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)548-552
Number of pages5
JournalJournal of Clinical Virology
Volume58
Issue number3
DOIs
StatePublished - 11 2013
Externally publishedYes

Keywords

  • Children
  • Enterovirus 71
  • Immunochromatographic test

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