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Volume 22, Number 10—October 2016
Dispatch

Hypervirulent Clone of Group B Streptococcus Serotype III Sequence Type 283, Hong Kong, 1993–2012

Margaret IpComments to Author , Irene Ang, Kitty Fung, Veranja Liyanapathirana, Ming Jing Luo, and Raymond Lai
Author affiliations: Chinese University of Hong Kong, Hong Kong, China; and Prince of Wales Hospital, Hong Kong

Main Article

Table 2

Distribution of GBS serotypes in patients with group B Streptococcus invasive disease, Hong Kong, 1993–2012*

Serotype Nonpregnant adults, n = 267
Neonates, n = 113
No. (%)
p value No. (%)
p value
Meningitis† Nonmeningitis‡ Meningitis† Nonmeningitis‡
Ia 1 (3.0) 32 (97.0) 0.53 4 (21.1) 15 (78.9) 0.55
Ib 1 (2.1) 46 (97.9) 0.28 2 (14.3) 12 (85.7) 0.27
II 0 17 (100.0) 0.31 0 4 (100.0) 0.22
III-1 1 (3.6) 27 (96.4) 0.66 5 (26.3) 14 (73.7) 0.56
III-2 0 13 (100.0) 0.38 16 (35.6) 29 (64.4) 0.08
III-3 0 3 (100.0) 0.68 2 (66.7) 1 (33.3) 0.11
III-4 7 (15.9) 37 (84.1) <0.001 1 (20.0) 4 (80.0) 0.73
V 2 (7.1) 26 (92.9) 0.64 0 3 (100.0) 0.29
VI 0 10 (100.0) 0.44 0 1 (100.0) 0.55
VII 0 3 (100.0) 0.68 0 0 NA
VIII 0 0 NA 0 0 NA
IX 0 0 NA 0 0 NA
NT 0 1 (100.0) 0.81 0 0 NA
Total
12 (5.3)
215 (94.7)
NA

30 (26.5)
83 (74.3)
NA
*GBS, group B Streptococcus; NT, nontypable. Bold indicates statistical significance; p values determined by Fisher exact or χ2 test.
†Meningitis was confirmed by cerebrospinal fluid culture of GBS. 
‡Nonmeningitis was confirmed by GBS culture from sterile body site or from cerebrospinal fluid.

Main Article

Page created: August 24, 2016
Page updated: August 24, 2016
Page reviewed: August 24, 2016
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