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Table 1 Isolation of H6 influenza viruses from terrestrial poultry in Eastern China during 2002 to 2010

From: Molecular evolution of the H6 subtype influenza a viruses from poultry in eastern China from 2002 to 2010

Yr of isolation

No. (%) of H6-positive isolates

Total sample no.

No. of viruses sequenced

2002

15 (1.94)

773

5

2003

13 (1.40)

930

5

2004

43 (3.41)

1,261

2

2005

7 (0.63)

1,116

1

2006

39 (3.36)

1,160

0

2007

67 (3.89)

1,723

8

2008

89 (4.38)

2,031

5

2009

71 (3.29)

2,157

10

2010

31 (1.59)

1,952

6

Total

375(2.86)

13,103

42