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Table 2 Detected genotypes of GI in each situation

From: Variation of human norovirus GII genotypes detected in Ibaraki, Japan, during 2012–2018

Season 2012/2013 2013/2014 2014/2015 2015/2016 2016/2017 2017/2018 Total
GI 13 11 29 7 3 4 67
 C 6 4 13 4   2 29
 F 7 7 13 3 3 2 35
 E    1     1
 O    2     2
GI.2 1 3 10 4 0 0 18
 C 1 2 4 2    9
 F   1 5 2    8
 E        
 O    1     1
GI.3 4 2 17 2 0 2 27
 C    8 2   1 11
 F 4 2 7    1 14
 E    1     1
 O    1     1
GI.4 0 3 1 0 0 1 5
 C       1 1
 F   3 1     4
 E        
 O        
GI.6 7 2 0 1 0 0 10
 C 5 1      6
 F 2 1   1    4
 E        
 O        
Other GI 1 1 1 0 3 1 7
 C   1 1     2
 F 1     3 1 5
 E        
 O        
  1. C childcare and educational facility, F food poisoning, E elderly nursing home, O others