Figure 1b shows genotypes identified in states where RotaTeq is in use. G12P[8] was the dominant genotype, identified in 42.5% of strains, while G3P[8] was second, identified in 22.3% of strains. G1P[8] strains were the third most common representing 13.6% of strains. G2P[4], G4P[8] and G9P[8] each represented less than 5% of strains.