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Table 1 Results from the epidemiological and microbiological surveillance of meningitis in Niger (2008-2011)

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

Year

Notified cases

Deaths

CFR

CSF collected

% CSF collected/declared cases

Nm (all types)

Nm A

Nm W

Nm X

Other serog.

Non-typ. Nm

Spn

Hi

Other

Negative CSF

2008

3851

256

6.65

2716

70.5

1082

1067 (98.6%)

0

5

0

10

117

33

23

1461

2009

13943

589

4.22

3915

28.1

1696

1654 (97.5%)

11

15

1 (Y)

15

78

12

66

2063

2010

2908

251

8.63

2384

82.0

921

243 (26.4%)

665 (72.2%)

1

0

12

93

22

26

1322

2011

1344

164

12.20

1041

77.5

410

5

402 (98.1%)

1

0

2

70

2

12

547

Total

22046

1260

5.71

10056

45.6

4109

2969

1078

22

1

39

358

69

127

5393

  1. Epidemiological data are from the Direction of Surveillance and Response to Epidemics (DSRE), Ministry of Public Health; Microbiological data from CERMES.
  2. CSF, cerebrospinal fluid; Nm, Neisseria meningitidis, CFR, case fatality rate.
  3. Spn, Streptococcus pneumoniae; Hi, Haemophilus influenzae.
  4. ‘Other’ are other aetiologies (i.e. Salmonella sp.), contaminated or broken samples.