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Description and demographics for participants selected for this study.
| Study Group | Sex | Age (years) | Baseline HAI Titer | # with Day 0 and Day 30 | # with Day 182 | Vaccine received in 2020–2021 | Vaccine received in 2021–2022 |
|---|---|---|---|---|---|---|---|
|
| |||||||
| 1x Vax | Male | 24–44 | 5 | 8 | 6 | Placebo | FluBlok |
| Female | 20–29 | 5 | 7 | 4 | Placebo | FluBlok | |
| 2x Vax | Male | 23–45 | 5 | 8 | 7 | FluBlok | FluBlok |
| Female | 25–43 | 5 | 7 | 3 | FluBlok | FluBlok | |
