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Table 2 Evolution of meningococcal Sequence-type (ST) and Clonal Complexes (cc) of serogroups A and W from meningitis cases in Niger from 2002 to 2011

From: Epidemiological changes in meningococcal meningitis in Niger from 2008 to 2011 and the impact of vaccination

Serogroup Year ST
A 2002 ST-7 (N = 11) (cc5)
  2003 ST-7 (N = 22) (cc5)
  2004 ST-7 (N = 13) (cc5)
  2005 ST-7 (N = 16) (cc5)
  2006 ST-7 (N = 11) (cc5) and ST-5788 (N = 1) (cc5)
  2007 (Nov) ST-7 (N = 21) (cc5) and ST-2859 (N = 6) (cc5)
  2008 ST-7 (N = 7) (cc5) and ST-2859 (N = 2) (cc5)
  2009 ST-7 (N = 27) (cc5) and ST-2859 (N = 1) (cc5)
  2010 ST-7 (N = 3) (cc5)
W 2002 ST-11 (N = 4) (cc11)
  2003 ST-2881 (N = 7) (cc175) and ST-11 (N = 5) (cc11)
  2004 ST-2881 (N = 4) (cc175)
  2005 ST-2881 (N = 7) (cc175)
  2006 ST-2881 (N = 2) (cc175)
  2007 -
  2008 ST-2881 (N = 2) (cc175)
  2009 -
  2010 ST-11 (N = 13) (cc11)
  2011 ST-11 (N = 17) (cc11)
  1. Data are from the WHO Collaborating Center on Meningococci at Institut de Médecine Tropicale du Service de Santé des Armées (IMTSSA), Marseille, France before 2011 and from the Pasteur Institute, Paris, France since 2011.