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Table 1 Number and incidence of laboratory-confirmed invasive meningococcal cases in Hefei reported to The Hefei CDC, by serogroup, 2000–2010

From: Emergence of serogroup C meningococcal disease associated with a high mortality rate in Hefei, China

Year of surverillance
Serogroup 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 Total
A 20(87) 15(68) 24(83) 22(38) 18(14) 21(13) 13(10) 19(15) 17(22) 18(41) 21(49) 208
C 2(9) 1(5) 3(10) 33(57) 103(80) 129(83) 112(84) 106(81) 55(71) 23(52) 17(40) 584
B 1(4) 3(14) 2(7) 1(2) a 4(3) 3(2) 5(4) 2(3) a 3(7) 24
X a 3(14) a 2(3) 4(3) 2(1) 3(2) a 1(1) 2(6) 1(2) 18
Y a a a a 3(2) 3(2) 1(1) 1(0.8) 2(3) 1(2) a 11
Total 23 22 29 58 128 156 134 131 77 44 43 845
Incidence 1.25 119 1.57 3.14 6.92 8.43 7.24 7.08 4.06 2.34 2.32 NA
  1. NOTE. Data are no. (%) of cases, unless otherwise indicated.
  2. NA, not applicable. a,no isolates identified.