Dong Tu Nguyen

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Autoagglutinable strains of Vibrio cholerae O1 (seven nonfimbriate strains and one fimbriate strain) were transformed to obtain resistance to ampicillin. Two distinct mechanisms were found in these strains. One was operating in nonfimbriate strains by reducing OmpU protein production and the other was operating in a fimbriate strain (Bgd17) by newly(More)
Strains of V. cholerae O1 were isolated from the sewage and a pond near the first patient's house and also from domestic vegetables obtained at a neighboring market. 1,505 cases were confirmed positive for V. cholerae O1 (biotype El Tor, serotype Ogawa) in 22 cities and provinces in northern Vietnam. epidemic strains of V. cholerae O1 were isolated from(More)
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(More)
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