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. 2011 Aug 15;204(4):574–581. doi: 10.1093/infdis/jir328

Table 3.

Seroprotection Rate (SPR) 14 and 21 Days After Administration of the Last Vaccine Dose

SPR (95% CI)a
Group and interval after last dose A/Indonesia/5/2005 A/Vietnam/1194/2004 A/turkey/Turkey/1/2005
14 days
    Group 0/21 (n = 65) 96.9 (86.9–99.8) (n = 63) 78.5 (66.5–87.7) (n = 51) 92.3 (83.0–97.5) (n = 60)
    Group 0/14 (n = 69) 92.8 (81.2–98.3) (n = 64) 59.4 (46.9–71.1) (n = 41) 82.6 (71.6–90.7) (n = 57)
    Group 0/7 (n = 74) 74.3 (59.7–85.9) (n = 55) 35.1 (24.4–47.1) (n = 26) 58.1 (46.1–69.5) (n = 43)
    Group 0/0 (n = 75) 74.7 (60.2–86.1) (n = 56) 37.3 (26.4–49.3) (n = 28) 52.0 (40.2–63.7) (n = 39)
21 days
    Group 0/21 (n = 62) 95.2 (86.5–99.0) (n = 59) 67.7 (54.7–79.1) (n = 42) 93.5 (84.3–98.2) (n = 58)
    Group 0/14 (n = 69) 92.8 (83.9–97.6) (n = 64) 49.3 (37.0–61.6) (n = 34) 79.7 (68.3–88.4) (n = 55)
    Group 0/7 (n = 72) 81.9 (71.1–90.0) (n = 59) 30.6 (20.2–42.5) (n = 22) 61.1 (48.9–72.4) (n = 44)
    Group 0/0 (n = 74) 77.0 (65.8–86.0) (n = 57) 36.5 (25.6–48.5) (n = 27) 58.1 (46.1–69.5) (n = 43)

NOTE. Data are presented for according-to-protocol cohort (participants aged 18–64 years). Vaccine doses were administered at intervals of 21 days (group 0/21), 14 days (group 0/14), or 7 days (group 0/7) or on the same day (group 0/0). The SPR was defined as the attainment rate for reciprocal hemagglutination inhibition titers ≥40; n = number of participants with data available (stub column) or numbers of respondents (with SPR values).

a

For the A/Indonesia/5/2005 strain at 14 days, 98.75% confidence intervals (CIs) are shown; all other CIs are 95%.