Fig. 1.

Classification sets for typing/clustering of a 13 different serotypes (PCV13 classification set) and b 24 different serotypes (PSV23 classification set); strains cluster according to their serotype with the exception of serotype 6A and B; to improve discernibility within the tree, spaces between strains clustering together with a cut-off of less than 0.2 are filled with very light grey; individual strains are colour-coded according to their serotype: serotype 14: black, serotype 5: red, serotype 9V: ochre, serotype 7F: blue, serotype 4: light green, serotype 18C: dark brown, serotype 23F: magenta, serotype 6B: light orange, serotype 6A: yellow, serotype 19F: grey, serotype 19A: light purple, serotype 1: dark green, serotype 3: light blue, serotype 15B: white, serotype 10A: cobalt blue, serotype 33F: light grey, serotype 17F: light brown, serotype 9N: rose, serotype 11A: light blue, serotype 22F: light rose, serotype 20: neon green, serotype 12F: dark green, serotype 2: dark blue, serotype 8: orange