All of the following are true about V. cholerae O139 except:
Ans. is 'b' i.e., First discovered in ChennaiO139 Vibrio was isolated first in Chennai because it was not agglutinated by any of the antisera available at that time (O1-O138) and identified as Bengal strain (O139) in Bengal in 1992 and Clinical manifestation and epidemiological features are similar to O1.O139 is identical to EI Tor except - Produces O139 Lipopolysaccharide (LPS) and Pathogenicity of O139 is due to O Ag (polysaccharide capsule).Abs to V. cholerae is not protective against O139.
Clinical manifestations are similar to O1 E1 tor
First discovered in Chennai
Produces O139 lipopolysaccharide
Epidemiologically indistinguishable from O1 E1 tor
Bacteria