Table 4. Published Studies on the Efficacy/Effectiveness of the WC/rBS Vaccine against Traveler's Diarrhea.
| Author (year) | Design | Type of population | N | Country of origin | Efficacy/effectiveness |
|---|---|---|---|---|---|
| Clemens (1988) | Clinical trial | Native | 50000 | India | 67% against LT-ETEC |
| Peltola (1991) |
Clinical trial | Travelers | 615 | Finland | 60% against LT-ETEC 23% global |
| Scerpella (1995) | Clinical trial | Travelers | 502 | USA | 50% against ETEC |
| Lopez-Gigosos (2007) | Retrospective cohort study | Travelers | 237 | Spain | 43% global |
| Ramon (2009) | Retrospective cohort study | Travelers | 658 | Spain | 57% global |
| Present study | Prospective cohort study | Travelers | 1074 | Spain | 28% global |