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Table 2 Distribution of genotypes by age group and surveillance arm

From: Norovirus strain types found within the second infectious intestinal diseases (IID2) study an analysis of norovirus circulating in the community

  Genotype  
Surveillance arm/age group GI.2 GI.3 GI.4 GI.5 GI.6 GI Untyped GII.1 GII.13 GII.2 GII.3 GII.4 GII.6 GII.7 GII.8 GII.9 GII Untyped Mixed genotypea Total
GP arm
 0–4 1 2 13 27 5 1 3 52
 05–15 1 1 2 4 1 9
 16–49 2  - 1 1 2 2 21 4 2 1 2 38
 50–64 1 1 1 1 3 2 26 35
 65+ - 1 1 24 1 1 28
 Not known - - 2 2
 Sub total 4 3 2 4 6 2 18 100 14 4 2 5 164
Self-reporting arm
 0–4 2 1 3 7 7 26 14 5 3 1 69
 05–15 1 2 1 1 6 7 1 8 10 2 1 1 41
 16–49 3 1 2 4 1 5 7 31 13 1 4 72
 50–64 1 2 1 2 8 3 9 38 9 4 1 1 2 81
 65+ 2 2 2 4 2 1 24 10 1 48
 Not known 1 1 2
 Sub total 2 9 6 1 1 8 25 1 24 25 128 56 12 2 1 11 1 313
Total 2 13 9 1 3 12 31 1 26 43 228 70 16 4 1 16 1 477
  1. aNote: the mixed genotype sample was: GI-3 / GII-6