FIG 2.

Molecular serotyping composition of different S. suis subgroups. The absence or presence and the sizes of the bubbles represents the number of isolates of each serotype in each population. Red indicates serotypes that have previously been obtained from human cases of disease. The Chinese filtered subset and the Chinese high-temperature subgroup had all eight human disease-associated serotypes. Serotype 2 and 1/2 isolates were identified in all of the Chinese subgroups but not in the UK collation. Serotype 16 isolates could be identified in all subgroups.