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An aseptic meningitis outbreak caused by echovirus 6 in Anhui province, China
Author(s) -
Mao Naiying,
Zhao Liping,
Zhu Zhen,
Chen Xia,
Zhou Shujie,
Zhang Yan,
Cui Aili,
Ji Yixin,
Xu Songtao,
Xu WenBo
Publication year - 2010
Publication title -
journal of medical virology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 121
eISSN - 1096-9071
pISSN - 0146-6615
DOI - 10.1002/jmv.21707
Subject(s) - aseptic meningitis , outbreak , echovirus , virology , phylogenetic tree , meningitis , feces , biology , cluster (spacecraft) , enterovirus , medicine , virus , microbiology and biotechnology , gene , pediatrics , genetics , programming language , computer science
Abstract An outbreak of aseptic meningitis (AM) occurred in Jinzhai County in Anhui province from April to July in 2005. Totally, 97 children aged 3–15 years were hospitalized. To identify the etiologic agent, 77 cerebrospinal fluid specimens (CSF) and 5 fecal specimens were collected from the patients and cultured by human rhabdomyosarcoma (RD) cell line. Thirty isolates of human echovirus 6 (E6) from 27 CSF and 3 fecal specimens were confirmed by neutralization assay and sequencing analysis of the VP1 gene. The homology of VP1 gene among Anhui isolates was 99.7–100.0% and it indicated that this AM outbreak probable caused by a single transmission link of E6. Phylogenetic analysis based on all the available complete VP1 sequences indicated that E6 could be divided into clusters A, B, and C with at least 15% diversity between clusters and the C cluster could be further divided into C1, C2, C3, and C4. The Anhui isolates most resembled a 2005 strain from Russia (25465 Tambov) and belong to C4. This is the first report that E6 was responsible for an outbreak of AM in China. J. Med. Virol. 82:441–445, 2010. © 2010 Wiley‐Liss, Inc.