Figure 1
From: Characterization of influenza virus sialic acid receptors in minor poultry species
Sialic acid distribution in avian trachea. Representative sections of trachea from 4 week old duck (A, B, C), goose (D, E, F), pheasant (G, H, I), turkey (J, K, L), quail (M, N, O), and guinea fowl (P, Q, R) stained with either DIG labeled MAA (α2,3 specific, first column), DIG labeled SNA (α2,6 specific, second column) or FITC SNA (green α2,6) and TRITC MAA (red α2,3). Duck and goose trachea show only α2,3 SA while all other birds display both α2,3 and α2,6 SA.