Skip to main content
. 2021 Apr 28;6(2):64. doi: 10.3390/tropicalmed6020064

Table 1.

Composition of WHO prequalified inactivated OCVs.

Dukoral™ Shanchol™, Euvichol™ Quantity per Dose
V. cholerae O1 Inaba classical strain Cairo 48
Heat inactivated
Same as in Dukoral 300 EU* LPS
(~2.5 × 1010 bacteria)
V. cholerae O1 Ogawa classical strain Cairo 50
Heat inactivated
Same as in Dukoral 300 EU of LPS
(~2.5 × 1010 bacteria)
V. cholerae O1 Ogawa classical strain Cairo 50
Formalin inactivated
Same as in Dukoral 300 EU of LPS
(~2.5 × 1010 bacteria)
V. cholerae O1 Inaba E1 Tor strain Phil 6973
Formalin inactivated
Same as in Dukoral 600 EU of LPS
(~5 × 1010 bacteria)
V. cholerae O139 strain 4260B
Formalin inactivated
600 EU of LPS
(~5 × 1010 bacteria)
Cholera toxin B subunit (rCTB) 1 mg

*EU stands for ELISA units, referring to the capacity of the vaccine to bind specific anti-LPS antibody in an internationally used Inhibition-ELISA method for quantification of LPS antigen.