Table 2 S. pneumoniae serotypes/serogroups detected in samples obtained from adults over 60 years old.

From: Re-evaluation of Streptococcus pneumoniae carriage in Portuguese elderly by qPCR increases carriage estimates and unveils an expanded pool of serotypes

Serotype/serogroup

Vaccinea

Number of samples with serotype/serogroup

Nursing homes

Family home

Classical culture-based approachesb

qPCRc

Classical culture-based approachesb

qPCRc

3

PCV13/PPV23

—

—

2

3

5

PCV13/PPV23

—

1d

—

—

6A

PCV13/PPV23

—

—

2

2

6C/D

—

—

2

2 (6C)

4

7A/F

PCV13/PPV23

—

—

—

1

7B/C

—

—

—

1

1

9L

—

—

—

1

1

10A

PPV23

—

—

—

1

11A/D

PPV23

—

3

1 (11A)

1

12A/B/F

PPV23

—

—

—

1

15A/F

—

—

—

—

1

16F

—

—

—

1

2

17F

PPV23

1

3

—

—

19A

PCV13/PPV23

7

16

—

1

20

PPV23

—

2

—

—

22A/F

PPV23

2 (22F)

4

—

1

23A

—

4

6

2

3

23B

—

1

1

1

1

24

—

—

1

—

2

31

—

—

—

1

1

35F

—

3

6

1

1

38

—

—

—

—

1

ND

—

—

5

—

1

  1. aIndicates whether the serotype/serogroup is potentially targeted by the 13-valent pneumococcal conjugate vaccine (PCV13: 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F) or by the 23-valent polysaccharide vaccine (PPV23: 1, 2, 3, 4, 5, 6B, 7F, 8, 9N, 9V, 10A, 11A, 12F, 14, 15B, 17F, 18C, 19A, 19F, 20, 22F, 23F and 33F).
  2. bDetection of pneumococci by identification and characterization of presumptive colonies grown on gentamicin blood agar, as described in the Methods section.
  3. cDetection of pneumococci using a qPCR targeting lytA and piaB genes, as described in the Methods section.
  4. dGiven that this specific assay is known to yield false positive results, it was not taken into consideration.
  5. ND, not determined.
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