Molecular Evidence of Clonal Vibrio parahaemolyticus Pandemic Strains
Nandini Roy Chowdhury*, Soumen Chakraborty*, Thandavarayan Ramamurthy*, Mitsuaki Nishibuchi†, Shinji Yamasaki*‡, Yoshifumi Takeda§, and Gopinath Balakrish Nair*
Author affiliations: *National Institute of Cholera and Enteric Diseases, Calcutta, India; †Center for Southeast Asian Studies, Kyoto University, Kyoto, Japan; ‡Research Institute, International Medical Center of Japan, Shinjuku-ku, Tokyo, Japan; §National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
Figure 2. Electrophoretic migration pattern of the NotI-digested Vibrio parahaemolyticus genomic DNA obtained by pulsed-field gel electrophoresis (PFGE). 2a-2c, PFGE patterns of the O3:K6, O4:K68, and O1:K untypeable (KUT) strains, respectively, isolated from different countries. 2d, PFGE pattern of the nonpandemic strains isolated from different countries and belonging to various serotypes (Table 2). The lanes on the right side of the marker indicate the pattern of the representative O3:K6(KX-V225), O4:K68(KX-V563), and O1:KUT(KX-V737) strains, respectively. Positions of molecular-size standards are also indicated in the figure.*=Strains isolated from travelers to the Kansai Airport from the respective places.
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