title: Characterization of Vibrio cholerae O139 of an Aquatic Isolate in Northern Vietnam.
abstract: During the cholera survey in Namdinh province (northern Vietnam) in July, 2010, one strain of Vibrio cholerae O139 was isolated from 7 environmental water samples positive for ctxA, toxR,VCO139 genes and named as V. cholerae O139, ND1 strain. This strain was lysogenic harbouring a genome similar to the filamentous phage fs1. The replicative form DNA of this phage (named as ND1-fs1, 6856 bp) was sequenced and compared with the other filamentous phages. The filamentous phage ND1-fs1 integrates into the region between ctxB and rtxA genes. The genetic organization of the CTXϕ of V. cholerae O139, strain ND1 was determined and the schematic representation of the genetic organization was shown together with the ND1-fs1 prophage.
authors.affiliation: Department of Bacteriology, National Institute of Hygiene and Epidemiology, No.1 Yersin Street, Hanoi, 10, 000, Vietnam.
authors.forename: Dong Tu
authors.initials: DT
authors.lastname: Nguyen
authors.forename: Tuan Cuong
authors.initials: TC
authors.lastname: Ngo
authors.forename: Huy Hoang
authors.initials: HH
authors.lastname: Tran
authors.forename: Thanh Huong
authors.initials: TH
authors.lastname: Le
authors.forename: Hoai Thu
authors.initials: HT
authors.lastname: Nguyen
authors.forename: Binh Minh
authors.initials: BM
authors.lastname: Nguyen
authors.forename: Nhu Duong
authors.initials: ND
authors.lastname: Tran
authors.forename: Tetsu
authors.initials: T
authors.lastname: Yamashiro
authors.forename: Masahiko
authors.initials: M
authors.lastname: Ehara