Year  

All Cases

 Imported  Total

Imported
Non Resident

Imported
US Resident

Import Linked

Imported Virus

Unknown Source

Import- Associated 

2001   

116  

54 (47%)

34 

20 

25(22%) 

12 (10%) 

25 (22%) 

91 (78%)

2002   

44

18 (41%) 

8

10 

15 (34%) 

4 (9%)   

7 (16%)

37 (84%)

2003  

56 

24 (43%) 

13   

11

19 (34%) 

2 (4%) 

11 (20%) 

45 (80%)

2004     

37

27 (73%) 

13

14 

6 (16%) 

0 (0%) 

4 (11%) 

33 (89%)

2005   

66

24 (36%)    

7

17

38 (56%) 

0 (0%) 

4 (6%) 

62 (94%)

2006     

55

31 (56%)    

12

19

19 (35%) 

2 (4%) 

3 (5%) 

52 (95%)

2007     

43

29 (67%)   

12

17

12 (28%) 

0 (0%) 

2 (5%) 

41 (95%)

2008   

140 

25 (18%) 

13

12

31 (22%) 

73 (52%) 

11 (8%) 

129 (92%)

2009 

71

21 (30%) 

7 

14

12 (17%) 

26 (37%) 

12 (17%) 

59 (83%)

2010   

64

39 (61%) 

15

24

  5 (8%)

12 (19%) 

8 (13%) 

56 (88%)

2011   

212

72 (34%)   

20 

52

67 (32%) 

54 (25%) 

19 (9%) 

193 (91%)

Total 

904

364 (40%) 

154   

210

249 (28%) 

185 (20%) 

106 (12%) 

798 (88%)

 Note:

*Total for Imported-virus column includes number of unknown source cases with imported virus and the number of cases with epi-link to imported virus cases.  This case breakdown has been available since 2008:

•  2008: 73 total cases; 22 imported virus and 51 epi-linked cases

•  2009: 26 total cases; 12 imported virus and 14 epi-linked cases

•  2010: 12 total cases; 8 imported virus and 4 epi-linked cases

•  2011: 54 total cases; 32 imported virus and 22 epi-linked cases