The distribution of lectin staining in the respiratory tract of pigs. Diagram showing the score distribution of the three lectins MAAI (SA-α-2,3-terminal saccharides), MAAII (SA-α-2,3) and SNA (SA-α-2,6) at the epithelial cells of alveoli, bronchioles, bronchi, trachea, and nose. (Score 1: 0-20%, 2: 20-40%, 3: 40-60%, 4: 60-80% and 5: 80-100%). The diagram is based on an average of both infAv positive (n = 8) and infAv negative (n = 13) pigs. Only scoring data from unconsolidated areas of the tissue sections is included in the figure.