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Table 4 Serogroup distributions of N. Meningitidis among Cerebrospinal fluid specimens and bacterial isolates among children aged < 5 years old in China, South Korea, and Vietnam by age group, 1999 through 2002 a

From: An expanded age range for meningococcal meningitis: molecular diagnostic evidence from population-based surveillance in Asia

Serogroup

Cerebrospinal fluid

Bacterial isolates

China

Korea

Vietnam

Vietnam

 

N (%)

 

N (%)

A

0

0

0

0

B

0

0

2 (9.1)

10 (100)

C

0

1 (6.3)

20 (90.9)

0

W-135

1 (16.7)

0

0

0

X

3 (50.0)

9 (56.3)

0

0

Y

2 (33.3)

6 (37.5)

0

0

Total

6 (100)

16 (100)

22 (100) b

10 (100)

  1. aSurveillance periods: China, January 1, 2000--December 31, 2002; South Korea: September 1, 1999--December 31, 2001; Vietnam: March 4, 2000-March 3, 2002.
  2. bOne specimen could not be linked with the clinical database.