Fig. 6. Multivariate statistical analysis discriminates the authentic vaccines Engerix B, Flucelvax Tetra, Ixiaro and Nimenrix from falsified vaccine constituents.

a Biotyper Sirius dendrogram. b VITEK MS dendrogram. Hierarchical clustering dendrogram of all samples sorts almost all sample replicates (n = 12 for each sample type) into their respective groups.