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. 2024 Sep 9;119:e240094. doi: 10.1590/0074-02760240094

TABLE IV. Ratio of geometric mean titres (GMT) of the coronavirus disease 2019 (Covid-19) (recombinant) vaccine by groups and collection time.

Collection time Group Ratio CI (95%)
Eight weeks 12 weeks
Pre 3rd dose 1453.5 1712.1 1.2 (0.78; 1.77)
28 days post 3rd dose 5529.9 5425.4 1.0 (0.75; 1.29)
Three months post 3rd dose 5546.2 5632.8 1.0 (0.76; 1.35)
Six months post 3rd dose 6077.9 4892.7 0.8 (0.6; 1.08)
12 months post 3rd dose 5276.6 5709.7 1.1 (0.79; 1.48)