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Table 1 Influenza positive swabs by subtype, year and strain, 2007-2008

From: Estimation of type- and subtype-specific influenza vaccine effectiveness in Victoria, Australia using a test negative case control method, 2007-2008

Influenza subtype and strain

2007 (%)

2008 (%)

A/H1N1

  

   A/Solomon Islands/3/2006-likeb

21 (43)

0

   A/New Caledonia/20/99-likea

0

0

   Not recovered/no result

28e (57)

4 (100)

   Total

49 (100)

4 (100)

A/H3N2

  

   A/Brisbane/10/2007-likeb

12 (9)

4 (10)

   A/Wisconsin/67/2005-likea

10 (8)

0

   Not recovered/no result

108e (83)

38 (90)

   Total

130 (100)

42 (100)

A/subtype not specified

8

6

B

  

   B/Florida/4/2006-likeb

2 (5)

1 (2)

   B/Malaysia/2506/2004-likea

3c (8)

1 (2)

   B/Shanghai/361/2002-like

2d (5)

0

   Not recovered/no result

30 (81)

63 (97)

   Total

37 (100)

65 (100)

  1. a 2007 vaccine strain
  2. b 2008 vaccine strain
  3. c includes 1 low reactor isolate
  4. d includes 2 low reactor isolates
  5. e 1 case positive for A/H1N1 and A/H3N2