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  • Title: Emergence of ONPG-negative Shigella sonnei in Shanghai, China.
    Author: Wang J, Qiu S, Xu X, Su W, Li P, Liang B, Ma Q, Yang C, Qi L, Li H, Yi S, Wu Z, Wang L, Hao R, Song H, Sun Y.
    Journal: Diagn Microbiol Infect Dis; 2015 Dec; 83(4):338-40. PubMed ID: 26403725.
    Abstract:
    Shigella sonnei has become predominant species causing shigellosis in Shanghai. Two hundred ninety-three S. sonnei were isolated in sentinel hospitals of Shanghai in 2011. We found an emergence of 8 strains of S. sonnei with negative phenotype for o-nitrophenyl-β-d-galactopyranoside in late August, which showed distinct pulsed-field gel electrophoresis patterns from the other 285 S. sonnei and had genes deletion in lac and mhp operons.
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