From: Phenotypic and genotypic characterization of meningococcal carriage and disease isolates in Burkina Faso after mass vaccination with a serogroup a conjugate vaccine
Pre-vaccination
Post-vaccination
District
B
D
K
Total
Serogroup
A
0
4
1
C
2
5
W
23
58
11
102
X
29
21
42
273
407
Y
31
16
114
54
220
NG
8
27
19
22
78
49
63
109
233
363
817