Table 4

Serotype distribution and gene frequency by disease group

SerotypeaNo. (%) of strains with genes by disease group
IPDNoninvasive
In the presence of:Total for serotypeIn the presence of:Total for serotype
pspA familypspCrrgCpspA familypspCrrgC
1212
41 (100)1 (100)1 (100)1
6B2 (100)2 (100)1 (50)22 (100)2 (100)2 (100)2
9V1 (100)1 (100)1 (100)1
141 (33)2 (67)3 (100)3
18C1 (100)1 (100)1
19F1 (11)8 (89)7 (78)9 (100)92 (20)8 (80)10 (100)9 (90)10
23F2 (100)2 (100)1 (50)22 (100)1 (50)1 (50)2
13 (100)3 (100)1 (33)3
32 (33)4 (67)4 (67)2 (33)61 (50)1 (50)1 (50)1 (50)2
52 (100)2 (100)1 (50)2
6A1 (100)1 (100)12 (67)1 (33)2 (67)2 (67)3
7Fb1 (8)11 (85)13 (100)2 (15)13
19Ab17 (33)33 (65)44 (86)37 (73)5120 (36)36 (64)55 (98)46 (82)56
6C7 (100)5 (71)2 (29)712 (100)11 (92)9 (75)12
9N1 (100)1 (100)1
10A/392 (100)2 (100)21 (100)1 (100)1 (100)1
11A/D/F1 (100)11 (17)5 (83)4 (67)4 (67)6
11E1 (100)1 (100)1
12F/B6 (100)5 (83)1 (17)61 (100)1 (100)1 (100)1
131 (100)1 (100)1
15A/F2 (100)1 (50)21 (17)5 (83)3 (50)2 (33)6
15B/C2 (25)6 (75)6 (75)1 (12.5)810 (100)9 (90)7 (70)10
16F1 (50)1 (50)2 (100)22 (40)3 (60)5 (100)4 (80)5
17F/A4 (100)3 (75)1 (25)41 (100)1 (100)1 (100)1
211 (100)1 (100)1
22F/Ab6 (100)3 (50)1 (17)62 (50)1 (25)2 (50)1 (25)4
23A4 (100)4 (100)2 (50)41 (100)1 (100)1
23B2 (50)2 (50)3 (75)1 (25)41 (33)2 (67)1 (33)2 (67)3
312 (100)2 (100)1 (50)2
33F/A2 (100)2 (100)24 (80)1 (20)5 (100)1 (20)5
35B6 (100)5 (83)6 (100)619 (100)15 (79)19 (100)19
35F/47F1 (100)14 (100)2 (50)1 (25)4
NTb1 (25)1 (25)412 (18)45 (69)45 (69)34 (52)65
Total60 (38)92 (59)127 (81)73 (46)15766 (30)146 (66)180 (81)149 (67)221
  • a NT, nontypeable.

  • b These serotypes had 1 strain that was nontypeable for pspA. NT isolates had >1 strain that was nontypeable for pspA.