TABLE 1

Vibriocidal antibody titers in patient sera collected 2 days (acute stage), 7 days, and 30 days (convalescent stage) after infection with V. cholerae O1 El Tor Ogawa

Vibriocidal titer (Ogawa) on day:
Patient no.Age (yr)Blood type2730
135O+5640160
225O+205,1201,280
327O+205,1202,560
444O+801,280640
522O+52,5601,280
626A+55,1202,560
728O+4010,2402,560
827O+32010,2402,560