再看看摩德纳MRNA1273疫苗的抗体水平,大约是新冠康复患者1.8-5.6倍的水平
下面为《新英格兰医学》文章所摘
Binding antibody IgG geometric mean titers (GMTs) to S-2P increased rapidly after the first vaccination, with seroconversion in all participants by day 15 (Table 2 and Figure 2A). Dose-dependent responses to the first and second vaccinations were evident. Receptor-binding domain–specific antibody responses were similar in pattern and magnitude (Figure 2B). For both assays, the median magnitude of antibody responses after the first vaccination in the 100-μg and 250-μg dose groups was similar to the median magnitude in convalescent serum specimens, and in all dose groups the median magnitude after the second vaccination was in the upper quartile of values in the convalescent serum specimens. The S-2P ELISA GMTs at day 57 (299,751 [95% confidence interval {CI}, 206,071 to 436,020] in the 25-μg group, 782,719 [95% CI, 619,310 to 989,244] in the 100-μg group, and 1,192,154 [95% CI, 924,878 to 1,536,669] in the 250-μg group) exceeded that in the convalescent serum specimens (142,140 [95% CI, 81,543 to 247,768]).
首次接种疫苗后,与S-2P的结合抗体IgG几何平均滴度(GMT)迅速增加,到第15天所有参与者的血清转化率都很高(表2和图2A)。第一次和第二次接种的剂量依赖性反应是明显的。受体结合域特异性抗体反应的模式和大小相似(图2B)。对于这两种测定,在100μg和250μg剂量组中首次接种后抗体应答的中值与新冠病人恢复期血清样本中的中值相似,在所有剂量组中,第二次接种后的抗体反应的中值都在新冠病人恢复期血清标本中值的上四分位数。第57天的S-2P ELISA GMT(25μg组为299,751 [95%置信区间{CI},206,071至436,020],100μg组为782,719 [95%CI,619,310至989,244]和1,192,154 250μg组中的[95%CI,924,878至1,536,669]
超过了新冠病人康复期血清标本中的CI [142,140 [95%CI,81,543至247,768])。