title: Emergence of a novel Shigella flexneri serotype 4s strain that evolved from a serotype X variant in China.
abstract: This paper describes the first isolation of a new Shigella flexneri serotype, designated 4s, in Beijing, China. Genotypic and phenotypic profiling suggests that this isolate is a clone of the S. flexneri serotype X variant reference strain. Of particular concern is the multidrug resistance exhibited by this isolate.
authors.affiliation: Institute of Disease Control and Prevention, Academy of Military Medical Sciences, 20 DongDa Street, FengTai District, Beijing 100071, China.
authors.forename: Shaofu
authors.initials: S
authors.lastname: Qiu
authors.forename: Zhongqiang
authors.initials: Z
authors.lastname: Wang
authors.forename: Chen
authors.initials: C
authors.lastname: Chen
authors.forename: Nan
authors.initials: N
authors.lastname: Liu
authors.forename: Leili
authors.initials: L
authors.lastname: Jia
authors.forename: Wenjing
authors.initials: W
authors.lastname: Liu
authors.forename: Ligui
authors.initials: L
authors.lastname: Wang
authors.forename: Rongzhang
authors.initials: R
authors.lastname: Hao
authors.forename: Ling
authors.initials: L
authors.lastname: Zhang
authors.forename: Yong
authors.initials: Y
authors.lastname: Wang
authors.forename: Hongbin
authors.initials: H
authors.lastname: Song
mesh_terms: D015373:Bacterial Typing Techniques; D002681:China; D016000:Cluster Analysis; D016172:DNA Fingerprinting; D004405:Dysentery, Bacillary / Q000382:microbiology*; D019143:Evolution, Molecular; D006801:Humans; D058889:Molecular Typing; D012703:Serotyping; D012763:Shigella flexneri / Q000145:classification* / Q000302:isolation & purification*