R. Lagos et al., ATTENUATED LIVE CHOLERA VACCINE STRAIN CVD-103-HGR ELICITS SIGNIFICANTLY HIGHER SERUM VIBRIOCIDAL ANTIBODY-TITERS IN PERSONS OF BLOOD-GROUP-O, Infection and immunity, 63(2), 1995, pp. 707-709
Persons of blood group O are at increased risk of developing cholera g
ravis. In a randomized, placebo-controlled, double-blind safety-immuno
genicity trial of live oral cholera vaccine CVD 103-HgR in 5- to 9-yea
r-old Chilean children, vibriocidal antibody seroconversion (74% overa
ll) did not differ by blood group. However, the reciprocal geometric m
ean titer (GMT) in blood group O vaccinees (GMT = 486) was higher than
that in non-O vaccines (GMT = 179) (P < 0.02).