From:  Recombinant influenza A/H1N1pdm09 vaccine expressing streptococcal surface epitope for dual protection

 Genome composition of vaccine strains.

Vaccine strainHA gene originNA gene originInternal genes origin
H1N1A/South Africa/3626/13 (H1N1)pdm09A/South Africa/3626/13 (H1N1)pdm09A/Leningrad/134/17/57 (H2N2)
H1-SprH1-Spr-69A/South Africa/3626/13 (H1N1)pdm09A/Leningrad/134/17/57 (H2N2)
H1-ScaABH1-ScaAB-202A/South Africa/3626/13 (H1N1)pdm09A/Leningrad/134/17/57 (H2N2)
H1-PspAH1-PspA-103A/South Africa/3626/13 (H1N1)pdm09A/Leningrad/134/17/57 (H2N2)