Vaccine status of participants at Visit 3 and Visit 4 following approval for ages 11+ prior to V3 and ages 5–11 prior to V4 using age at time of visit (vaccination considered effective day 14+ post-immunization).

Vaccine status of participants at Visit 3 and Visit 4 following approval for ages 11+ prior to V3 and ages 5–11 prior to V4 using age at time of visit (vaccination considered effective day 14+ post-immunization).

本数据集记录了受试者在访视3（Visit 3）与访视4（Visit 4）时的疫苗接种状态，相关判定前提如下：访视3开展前，疫苗已获批适用于11岁及以上人群；访视4开展前，疫苗已获批适用于5至11岁人群。统计时以受试者的访视时年龄作为依据，且将接种后14天及以上的疫苗视为有效疫苗。