Donor self-reported information and pandemic-specific antibody and CD8 T cell responses in the Toronto cohorts.

aa titer of 40 was used as the cutoff for seropositivity.bone donor did not provide vaccination history and was therefore not included in the vaccination stratification and subsequent vaccine recipient frequency.cnumber of donors within category; parentheses indicates percentage.以40的AA滴度作为血清阳性（seropositivity）的临界值（cutoff）。骨骼捐献者未提供疫苗接种史，因此未纳入疫苗接种分层分析及后续的疫苗接种者频率统计。注：各分类内的捐献者数量以括号内数值标注占比。