FIG. 1.

Duodenal IgA ASC responses against CFAs and CTB in adult Bangladeshi vaccinees and patients. Open circles, individual preimmune values for volunteers; solid circles, individual values seen 7 days after two oral doses of the ETEC vaccine, i.e., on day 21; triangles, individual values for patients on day 3 after hospitalization; inverted triangles, individual values for patients on day 9; horizontal bars, median ASC values. No statistically significant differences (NS, P ≥ 0.05) were seen between vaccinees and patients monitored either on day 3 or on day 9.