TABLE II. Number and proportion of children according to the outcome after yellow fever vaccination and the type of vaccine.
Vaccine |
p | ||
---|---|---|---|
17D-213/77 n/N (%) | 17DD n/N (%) | ||
Seropositive individuals (≥ 2.80 mIU/mL) (full cohort) | 803/981 (81.9) | 820/985 (83.2) | 0.184 |
Seroconversion among seronegative individuals before vaccinationa | 725/855 (84.8) | 715/852 (85.8) | 0.597 |
Ratio of post-vaccination/ pre-vaccination titresb ≥ 4 | 761/981 (77.6) | 806/985 (81.8) | 0.131 |
a: excludes pre-vaccination antibody titres ≥ 2.70 mIU/mL and missing data; b: includes all with results of serologic testing.