Table 1.

Serogroup distribution among all the meningococcal isolates in this study

GroupValue for sampling timeTotal (n = 904)
Freshers week (October) (index round) (n = 300)Autumn term (November or December) (n = 448)Spring term (March) (n = 156)
No. of isolates%No. of isolates%No. of isolates%No. of isolates% overall
B8528.39220.54528.822224.5
C103.3388.563.8546
29E186245.495.8515.6
H20.7000020.2
W135196.345101811.5829.1
X51.7122.721.3192.1
Y248378.3117728
Z10.340.90050.6
NG13645.319643.76541.739743.9