Ja. Johnson et al., VIBRIO-CHOLERAE O139 SYNONYM BENGAL IS CLOSELY-RELATED TO VIBRIO-CHOLERAE EL-TOR BUT HAS IMPORTANT DIFFERENCES, Infection and immunity, 62(5), 1994, pp. 2108-2110
Although Vibrio cholerae O139 synonym Bengal strains, from the current
epidemics in India and Bangladesh, are closely related to seventh-pan
demic strains, as shown by multilocus enzyme electrophoresis, Bengal s
trains are encapsulated and portions of the O1 antigen biosynthetic co
mplex genes found in O1 strains are altered or larking. Encapsulated B
engal strains showed resistance to killing by normal human serum. The
presence of the capsule suggests the potential for bloodstream invasio
n in susceptible hosts and has profound implications for vaccine devel
opment.