TABLE III. Number and proportion of children according to serological status before and after vaccination against yellow fever, within categories of maternal serological status and the type of vaccine.
| Serological status of the child | Maternal serological
status |
p | |
|---|---|---|---|
| < 2.80 mIU/mL n/N (%) | ≥ 2.80 mIU/mL n/N (%) | ||
| Seropositivea children before vaccination | 40/363 (11) | 114/1,342 (8.5) | 0.137 |
| Seroconversionb after vaccination | 311/359 (86.6) | 1,117/1,314 (85) | 0.493 |
| 17D-213/77 | 144/172 (83.7) | 561/655 (85.6) | 0.607 |
| 17DD | 167/187 (89.3) | 556/659 (84.4) | 0.116 |
| Ratio of post-vaccination/pre-vaccination titres ≥ 4 | 295/357 (82.6) | 1,082/1,313 (82.4) | 0.983 |
| 17D-213/77 | 132/170 (77.6) | 531/655 (81.1) | 0.372 |
| 17DD | 163/187 (87.2) | 551/658 (83.7) | 0.304 |
a: titres ≥ 2.80 mIU/mL; b: seroconversion from seronegative to seropositive.