Molecular epidemiology of an outbreak of hand, foot, and mouth disease associated with subgenotype C4a of enterovirus A71 in Nanchang, China in 2014
JOURNAL OF MEDICAL VIROLOGY(2015)
摘要
An outbreak of hand, foot, and mouth disease was reported through hospital-based surveillance in Nanchang, China in 2014. A total of 244 cases were reported, 176 (72.1%) cases were tested positive for enteroviruses by direct reverse transcription-polymerase chain reaction, in which enterovirus A71 (EV-A71), coxsackievirus A16 (CV-A16), and untyped enteroviruses (UEV) accounted for 84.1%, 3.4%, and 12.5%, respectively. In this outbreak, children under 5 years old constituted more than 98% of the positive cases, and the ratio of male to female cases was 2.6 to 1 (P<0.01). Phylogenetic analysis indicated that the Nanchang EV-A71 strains belonged to subgenotype C4a undergoing continuously evolutionary changes. J. Med. Virol. 87:2154-2158, 2015. (c) 2015 Wiley Periodicals, Inc.
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关键词
hand,foot,mouth disease,enterovirus A71,molecular epidemiology,subgenotype C4a
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