Three dimensional representation of
population from cholera endemic area using Principal component analysis (PCA) derived from informative fragments. Black dots indicate O1 strains while blue dots indicate nonO1-nonO139 strains. I, II, III, IV, V and VI represents 6 components into which 52 isolates were divided. All V. cholerae O1 belonged to component II except C8/07 belonging to component I and nonO1-nonO139 isolates exhibited heterogeneous distribution.