Table 2 Inhibition constants of samples against A/X31 (H3N2) from hemagglutination inhibition assay.

Values are expressed as means ± SD, n = 4.

KiHAI (μg/ml)KiHAI (nM sialic acid)
RBCm41.6 ± 20.68.4 ± 4.2
MDCK-II membrane6.8 ± 1.91.6 ± 0.5
RBCm vesicles and
free Zan
11.7 ± 4.52.4 ± 0.9
RBCm-Zan hybrid
vesicles
5.9 ± 2.31.2 ± 0.5
NB-RBCm51.9 ± 23.83.1 ± 1.4
NB-RBCm and Zan19.5 ± 7.81.2 ± 0.5
Hetero-MNB13.7 ± 3.90.8 ± 0.2