Table 1. Vaccine regimens.
Group | 1st immunization week 0 | 2nd immunization week 2 | 3rd immunization week 4 | 4th immunization week 6 |
A | i.m. IDLV-OVA | - | - | - |
B | i.m. IDLV-OVA | s.l. OVAp + LT | s.l OVAp + LT | - |
C | s.l. OVAp + LT | s.l. OVAp + LT | i.m. IDLV-OVA | - |
D | i.m. OVAp + LT | - | - | - |
E | i.m. OVAp + LT | s.l. OVAp + LT | s.l. OVAp + LT | - |
F | s.l. OVAp + LT | s.l. OVAp + LT | s.l. OVAp + LT | s.l. OVAp + LT |
Naive | - | - | - | - |
i.m.: intramuscular; s.l.: sublingual; OVAp: ovalbumin protein; LT: E.coli heat-labile enterotoxin.