Numbers of subjects providing sera and PBMCs

Category and time pointNo. of subjects
Subjects providing samples at:
    Single time points
    Consecutive time points
        T1, T28
        T2, T311
        T1, T2, T32
Total providing samples at:
  • a Eight subjects with elevated (4-fold-increased) HI titers to seasonal influenza viruses in sequential samples (Fig. 2B and C) were excluded; the remaining 37 eligible patients were included.