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Genetic relatedness of the NCDC-A1654 Vibrio cholerae isolate with reference O1 ElTor, classical and nonO1/nonO139 strains based on partial sequence of recA and rpoA. Neighbour-joining tree was constructed by MEGA6 using Kimura-2 method. VEA1401A, VEA1402B and VEA1403C are environmental nonO1/non139 strains from Assam, India [5].
