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Table 2 Distribution of Norovirus strains by ORF1 and ORF2 genotype combinations

From: Changes in norovirus genotype diversity in gastroenteritis outbreaks in Alberta, Canada: 2012–2018

ORF1/ORF2 genotypes

July 2012–June 2013

July 2013–June 2014

July 2014–June 2015

July 2015–June 2016

July 2016–June 2017

July 2017- Feb 2018

Total

GI sequenced

       

Pol NT/GI.1

  

1

   

1

GI.P1/GI.1

     

3

3

Pol NT/GI.2

 

2

 

1

  

3

GI.2/GI.P2

    

1

 

1

Pol NT/GI.3

 

1

1

15

  

17

GI.P3/GI.3

     

4

4

Pol NT/GI.4

 

1

    

1

Pol NT/GI.5

  

2

   

2

Pol NT/GI.6

20

 

1

   

21

GI.Pb/GI.6

     

1

1

Pol NT/GI.7

14

  

1

  

15

Pol NT/GI.9

 

1

    

1

GII sequenced

       

Pol NT/GII.1

   

1

  

1

GII.P16/GII.2

    

13

 

13

GII.P2/GII.2

1

  

1

  

2

GII.Pe/GII.2

   

1

  

1

Pol NT/GII.3

   

1

  

1

GII.P12/GII.3

    

1

3

4

Pol NT/GII.4 Den Haag 2006b

4

1

    

5

Pol NT/GII.4 New Orleans 2009

5

7

    

12

GII.P4 New Orleans 2009/GII.4 New Orleans 2009

1

4

    

5

Pol NT/GII.4 Sydney 2012

86

54

51

9

 

4

204

GII.P16/GII.4 Sydney 2012

   

21

3

44

68

GII.P4 New Orleans 2009/GII.4 Sydney 2012

    

4

 

4

GII.Pe/GII.4 Sydney 2012

 

2

9

3

2

5

21

Pol NT/GII.5

 

7

1

   

8

Pol NT/GII.6

2

7

5

5

  

19

GII.P7/GII.6

     

3

3

Pol NT/GII.7

1

 

1

2

  

4

GII.P7/GII.7

     

1

1

Pol NT/GII.8

 

1

1

1

  

3

Pol NT/GII.13

 

4

4

   

8

Pol NT/GII.14

  

1

   

1

Pol NT/GII.16

   

1

  

1

Pol NT/GII.17

  

4

9

6

 

19

GII.P17/GII.17

    

4

 

4

  1. Pol NT = polymerase not typed