Table 1 Pneumococcal serotypes and MLST profiles from Danish infants younger than 90 days with invasive pneumococcal disease from 2003 through 2013

2003

6

23F (ST 440)

1^a

1^a

7F^a

7F^a

8 (ST 53)

2004

4

19F (ST 177)

1 (ST 306)

3 (ST 180)

7F^a

2005

4

18C^a

18C^a

1^a

20^a

2006

4

6B^a

1^a

3^a

7F (ST 1176)

October 2007: introduction of PCV-7 in the Danish childhood immunisation programme

2007

5

18C (ST 1016)

19F (ST 2731)

19F (ST 177)

23F (ST 37)

19A (ST 199)

2008

6

6B (ST 146)

19F (ST 3347)

7F (ST 191)

7F (ST 191)

6C (ST 481)

27 (ST 4676)

2009

3

18C (ST 113)

7F (ST 1589)

6C (ST 1692)

April 2010: introduction of PCV-13 in the Danish childhood immunisation programme

2010

3

3 (ST 9107)

7F (ST 191)

19A (ST 199)

2011

4

1 (ST 306)

3 (ST 180)

7F (ST 1176)

27 (ST 9760)

2012

1

12F (ST 989)

2013

4

1 (ST 306)

7F (ST 191)

7F (ST 1176)

8 (ST 9761)