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Table 1 Genotypic characterization and clinical background of cps7 S. suis strains investigated in this study

From: Streptococcus suis cps7: an emerging virulent sequence type (ST29) shows a distinct, IgM-determined pattern of bacterial survival in blood of piglets during the early adaptive immune response after weaning

Straina

Genotype

Site of isolation

Year of isolation

MP-PCRb

Sequence type

mrp variantb

08/1324-1

cps7/mrp

29

mrp

Brain

2009

V2217/2

cps7/mrp

29

mrp

Lung

2010

S5552/1

cps7/sly

89

Brain

2010

V154/3

cps7/mrp

29

mrp

Brain

2012

V592/1

cps7/mrp

29

mrp

Lung

2012

R1984-1+/1

cps7/mrp

29

mrp****

Brain

2012

#451

cps7/mrp

29

mrp*

Brain

2012

13-00283-02

cps7/mrp

29

mrp****

Brain

2013

V3667/1

cps7/mrp

29

mrp*

Brain

2013

A2055/1

cps7/mrp

29

mrp

Joint

2013

V2310/1

cps7/mrp

29

mrp

Brain

2013

V3052/2

cps7/mrp

29

mrp

Lung

2013

D14412/3

cps7/mrp

29

mrp***

Brain

2014

15/2-7

cps7/mrp

29

mrp

Spleen

2015

16-00654-02

cps7/mrp

29

mrp****

Joint

2016

16-00654-03

cps7/mrp

29

mrp****

Pericardium

2016

16-00552-05

cps7/mrp

777

mrp

Brain

2016

16-00131-08

cps7/mrp

29

mrp

Brain

2016

16-00052-01

cps7/mrp

29

mrp

Unknown

2016

16-00596-02

cps7/mrp

29

mrp*

Brain

2016

30Tc

cps7

nd

Tonsil

2014

262/3c

cps7

nd

Tonsil

2015

  1. nd: not defined.
  2. aAll strains were isolated from piglets of different herds, except 16-00654-02 and 16-00653-03 as well as 30T and 262/3, respectively.
  3. bAll strains were genotyped in the multiplex (MP) PCR and in the mrp variant PCR described by Silva et al. [19]. None of the strains was positive for the epf gene encoding EF.
  4. cSequences of MLST alleles of strains 30T and 262/3 have also been submitted to the MLST database, but the sequence type has not yet been assigned (id 1792 and 1793, respectively).