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Table 2 Transmission and reassortment events of human and swine influenza A viruses

From: Detecting transmission and reassortment events for influenza A viruses with genotype profile method

Subtype

Human

Swine

 

Genotype

Eventsa

N.b

Yearc

Genotype

Events

N.

Year

H1N1

[A, A, A, 1A, A, 1A, B, 1A]

First transmission from avian?[17]

1

1918 (1)

[A, A, B, 1B, A, 1A, B, 1A]

Transmission from human [42]

4

2004-2006

 

[A, A, C, 1B, A, 1A, B, 1A]

Unknownd

1

1936

[A, A, C, 1A, A, 1A, A, 1A]

Unknownd

1

1931 (4)

 

[A, A, C, 1A, A, 1B, B, 1A]

Transmission from swined[43]

1

1976 (2)

[A, A, C, 1A, A, 1A, B, 1A]

Unknownd

1

1935 (5)

 

[A, D, B, 1B, A, 1A, B, 1A]

Reassortant by H3N2 & H1N1

5

1978-1979

[A, G, I, 1C, F, 1F, F, 1E]

Reassortant by EA & humand[44]

1

1979

 

[B, A, C, 1A, A, 1B, A, 1A]

Transmission from CS

4

1976-1991

[B, D, C, 1A, A, 1B, A, 1A]

Reassortant by TRIG & CS [45]

3

2004

 

[C, D, E, 1A, A, 1B, A, 1A]

Transmission from TRIG [46]

1

2005

[C, A, C, 1A, B, 1A, B, 1A]

Unknownd

3

1931-1942

 

[C, D, E, 1B, A, 1A, A, 1A]

Reassortant by TRIG & H1N1 [37]

3

2009

[C, D, C, 1A, A, 1B, A, 1A]

Reassortant by TRIG & CS [45]

1

2003

 

[C, A, C, 1A, B, 1A, B, 1A]

Unknownd

2

1982-1987

[C, D, E, 1B, A, 1A, A, 1A]

TRIG & human H1N1 [47]

2

2005

     

[C, D, E, 1C, A, 1F, F, 1A]

TRIG & EA [35]

1

2010

     

[C, F, E, 1D, H, 1E, E, 2B]

Transmission from avian [48]

1

2002

     

[F, G, I, 1A, F, 1F, F, 1E]

Reassortant by EA & CS [49]

1

2000

     

[F, G, I, 1A, A, 1B, F, 1E]

Reassortant by EA & CS [3]

2

2001

     

[F, G, I, 1C, F, 1F, F, 1A]

Reassortant by EA & TRIG [9]

10

2009

H1N2

[A, D, B, 1B, A, 2A, B, 1A]

Reassortant by H3N2 & H1N1 [50, 51]

26

2002-2003

[A, D, B, 1B, A, 2A, B, 1A]

Reassortant by H3N2 & human H1N1 [45]

1

2003

     

[B, A, C, 1A, A, 2A, A, 1A]

Reassortant by CS & H3N2 [49, 52]

4

1980-2004

     

[B, D, C, 1B, A, 2A, A, 1A]

Reassortant by TRIG & CS [45]

2

2004

     

[C, D, E, 1A, A, 2A, F, 1A]

Reassortant by TRIG & EA [3]

2

2003-2004

     

[F, G, I, 1A, A, 2A, F, 1E]

Reassortant by EA & CS [3]

1

2001

     

[F, G, I, 1A, F, 2A, F, 1A]

Reassortant by EA & CS [9]

1

2009

H2N1

[A, A, B, 2B, A, 1A, B, 1A]

Reassortant by H1N1 & H2N2?d

1

1977

    

H2N3

    

[C, D, E, 2H, A, 3A, A, 1A]

Reassortant by TRIG & avian [53] H2N3 [53]

2

2006

H3N1

    

[C, D, E, 3A, A, 1B, A, 1A]

Reassortant by TRIG & CS [54, 55]

5

2004-2006

H3N2

[A, A, A, 3A, A, 2A, B, 1A]

Reassortant by H1N1 & H3N2?d

1

1968

[A, D, B, 3A, A, 2A, A, 1A]

Reassortant by H3N2 & CS

1

2002

 

[C, D, E, 3A, A, 2A, A, 1A]

Transmission from TRIG [38]

1

2005

[F, G, I, 3A, A, 2A, F, 1A]

Reassortant by EA & CS [56]

1

2004

 

[F, G, I, 3A, F, 2A, F, 1E]

Transmission from EA [57]

1

1999

    

H3N3

    

[C, F, E, 3C, H, 3A, E, 1D]

Transmission from avian [48]

2

2001

H3N8

    

[C, I, G, 3F, C, 8B, E, 1D]

Transmission from avian [58]

2

2005-2006

H4N6

    

[C, F, E, 4A, H, 6A, E, 1D]

Transmission from avian [59]

1

1999

H5N1

[G, G, E, 5J, F, 1G, F, 1E]

Transmission from avian [11, 60]

13

1997-1998

[K, G, D, 5J, F, 1J, F, 1E]

Transmission from avian [61]

9

2001-2004

 

[K, G, D, 5J, F, 1J, F, 1E]

Transmission from avian [10, 62, 63]

147

2003-2008

    
 

[L, G, D, 5J, F, 1J, F, 1E]

Transmission from avian

1

2006 (3)

    

H5N2

    

[C, G, E, 5H, A, 2D, A, 2A]

Reassortant by TRIG & avian [64]

1

2008

     

[G, G, D, 5H, F, 2D, F, 2A]

Transmission from avian [64]

1

2008

H7N3

[C, F, E, 7F, H, 3A, E, 1D]

Transmission from avian [65]

1

2004

    

H7N7

[G, G, D, 7A, F, 7D, F, 1E]

Transmission from avian [66]

1

2003

    

H9N2

[G, G, D, 9C, F, 2B, F, 1E]

Transmission from avian [67]

1

2003

[G, G, D, 9F, F, 2D, F, 1E]

Transmission from avian

1

2004

 

[G, G, E, 9C, F, 2B, F, 1E]

Transmission from avian [68]

1

1999

[K, G, E, 9C, F, 2B, F, 1E]

Transmission from avian [69]

11

1998-2005

 

[G, G, E, 9B, F, 2E, F, 1E]

Transmission from avian [60]

2

1999

    
  1. aEvents: possible transmission or reassortment events and most of them were previously reported. CS: classic swine; EA: Eurasian avian-like swine; TRIG: Triple reassortant swine.
  2. bN.: the number of the relevant virus strains in FluGenome.
  3. cYear: the isolation year of the relevant virus strains in FluGenome. If multiple strains have been isolated, the first and the last years are listed. The numbers in the round brackets following the years refer to some special virus strains in history: (1) A/Brevig Mission/1/1918; (2) A/New Jersey/1976; (3) A/Indonesia/CDC759/2006; (4) A/swine/1931; (5) A/swine/Ohio/23/1935.
  4. dSome events are hard to exactly determined due to lack of full information about these old virus strains.
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