TABLE 2

Genomic characteristics of different S. suis populationsa

IsolateNo. of isolatesSimpson′s diversity indexProportion of HDAS (%)Virulence genotype pattern (%) (epf mrp sly)
DsCI−CI+− − −mrpNA2slymrpNA1mrpNA1slymrpEUslyepf mrpNA2slyepf mrpNA1slyepf mrpEUsly
All S. suis isolates
    China_HTS1680.9710.9620.98143.4575.006.555.956.552.381.190.601.79
    China_LTS550.9760.9600.99132.7389.091.8201.8205.4501.82
    UK_HTS970.9650.9470.98228.8685.578.2505.15001.030
    UK_LTS300.9660.9291.0006.6786.673.333.336.670000
    China_5 WOS1450.9690.9590.97942.7675.177.595.526.9002.070.692.07
    China_20 WOS780.9720.9570.98737.1884.621.282.562.565.132.5601.28
    UK_5 WOS910.9600.9400.98028.5784.628.7905.49001.0980
    UK_20 WOS360.9870.9750.99911.1188.892.782.785.560000
    China_IPFS1380.9720.9640.98139.8676.817.253.627.2501.450.722.90
    China_SPFS850.9410.9080.97342.3581.182.355.887.0603.5300
    China_all2230.9790.9730.98540.8178.485.384.485.381.792.240.451.79
    UK_all1270.9720.9590.98423.6285.837.090.795.51000.790
Filtered S. suis isolates
    China_filtered2090.9800.9740.98639.7178.475.264.785.471.442.390.481.44
    UK_filtered1250.9720.9600.98523.2085.607.200.805.60000.800
  • a HDAS, human disease-associated serotype; HTS, high-temperature subgroup; LTS, low-temperature subgroup; 5 WOS, 5-week-old subgroup; 20 WOS, 20-week-old subgroup; IPFS, intensive pig farm subgroup; SPFS, small pig farm subgroup; Ds, Simpson′s diversity index; CI+, confidence interval upper limit (95%); CI−, confidence interval lower limit (95%).