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Table 3 Number of EV71 genotypes for every year in mainland China

From: Molecular characteristics of the VP1 region of enterovirus 71 strains in China

Year

Gene subtype of EV71

Number

C4a

C4b

C1

C2

C3

C5

A

B1

B2

B3

B4

B5

1986

            

0

1996

   

1

        

1

1997

    

1

       

1

1998

 

1

 

1

        

2

1999

            

0

2000

 

3

          

3

2001

 

4

          

4

2002

 

4

          

4

2003

7

7

      

1

   

15

2004

1

13

 

1

        

15

2005

3

 

1

         

4

2006

6

1

1

         

8

2007

56

2

          

58

2008

280

6

 

2

1

 

4

     

293

2009

341

16

    

2

     

359

2010

551

15

          

566

2011

302

6

1

3

1

 

1

2

2

3

 

2

323

2012

273

27

    

1

     

301

2013

231

1

 

1

        

233

2014

415

22

 

4

        

441

2015

159

12

 

1

        

172

2016

148

15

         

1

164

2017

148

           

148

2018

11

           

11