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Table 4 Serotype distribution of invasive group B streptococci isolates in the present study compared with two previous studies in the same region

From: Serotypes of group B streptococci in western Sweden and comparison with serotypes in two previous studies starting from 1988

  Neonates and infants Adults
Berg et al. [15] Persson et al. [16] Present study Berg et al. [15] Persson et al. [16] Present study
Serotype No. (%) No. (%) No. (%) No. (%) No. (%) No. (%)
Ia 14 (18) 5 (10) 17 (18) 4 (6) 10 (9) 34 (11)
Ib 2 (3) 2 (4) 5 (6) 15 (23) 10 (9) 45 (14)
II 4 (5) 1 (2) 5 (6) 10 (15) 7 (6) 29 (9)
III 48 (62) 30 (60) 44 (48) 19 (29) 28 (25) 62 (20)
IV 2 (3) 1 (2) 2 (2) 1 (2) 8 (7) 14 (4)
V 7 (9) 11 (22) 15 (16) 14 (21) 47 (42) 124 (39)
VII 0 (0) 0 (0) 0 (0) 0 (0) 0 (0) 1 (1)
VIII 0 (0) 0 (0) 3 (1) 0 (0) 0 (0) 1 (1)
IX 0 (0) 0 (0) 7 (2) 0 (0) 0 (0) 2 (2)
Non-typeable 1 (1) 0 (0) 0 (0) 3 (5) 1 (1) 0 (0)
  1. The present study covers a longer time span than the two previous, which explains the increased number of cases