TABLE 4.
Immunization protocols used in this study
| Day 0a | Day 7 | Designationb |
|---|---|---|
| Intranasal antigen + CT | Intranasal antigen + CT | IN:IN |
| Intraperitoneal antigen + CT | Intranasal antigen + CT | IP:IN |
| Intranasal PBS | Intranasal antigen + CT | 0:IN |
| Intraperitoneal antigen + CT | Intranasal PBS | IP:0 |
| Intranasal PBS | Intranasal PBS | Control |
a
Day of immunization with 5 μg of influenza virus antigen plus 0.1 μg of CT by either the intranasal or intraperitoneal route. As a control, intranasal inoculation with sterile PBS was done. Seven days after the day 7 immunizations, samples were collected for analysis.
b
Designations used in the text, tables, and figures to refer to these immunization groups.