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Influenza virus subtyping in 2018

The information is based on testing of influenza virus isolates obtained from cell culture, and intends to provide a profile on the proportion of circulating strains. The date refers to specimen reception by the laboratory.

Week number Date Type A total Type A subtype H1 Type A subtype H3 Type A subtype H5 Type A subtype H7 Type A subtype H9 Type B total Type B (Victoria lineage) Type B (Yamagata lineage)
1 31/12/2017 - 06/01 27 17 10 0 0 0 87 9 78
2 07/01 - 13/01 35 18 17 0 0 0 110 8 102
3 14/01 - 20/01 33 21 12 0 0 0 105 8 97
4 21/01 - 27/01 22 11 11 0 0 0 123 5 118
5 28/01 - 03/02 18 10 8 0 0 0 91 4 87
6 04/02 - 10/02 21 18 3 0 0 0 116 7 109
7 11/02 - 17/02 23 18 5 0 0 0 93 1 92
8 18/02 - 24/02 30 24 6 0 0 0 98 6 92
9 25/02 - 03/03 47 37 10 0 0 0 94 5 89
10 04/03 - 10/03 35 29 6 0 0 0 61 3 58
11 11/03 - 17/03 58 48 10 0 0 0 67 1 66
12 18/03 - 24/03 40 31 9 0 0 0 60 2 58
13 25/03 - 31/03 33 30 3 0 0 0 46 2 44
14 01/04 - 07/04 31 24 7 0 0 0 41 2 39
15 08/04 - 14/04 63 48 15 0 0 0 26 2 24
16 15/04 - 21/04 48 39 9 0 0 0 10 3 7
17 22/04 - 28/04 57 42 15 0 0 0 13 1 12
18 29/04 - 05/05 46 33 13 0 0 0 16 0 16
19 06/05 - 12/05 37 26 11 0 0 0 14 0 14
20 13/05 - 19/05 38 27 11 0 0 0 2 0 2
21 20/05 - 26/05 39 26 13 0 0 0 4 1 3
22 27/05 - 02/06 30 23 7 0 0 0 2 0 2
23 03/06 - 09/06 45 33 12 0 0 0 1 1 0
24 10/06 - 16/06 36 32 4 0 0 0 2 2 0
25 17/06 - 23/06 27 23 4 0 0 0 1 0 1
26 24/06 - 30/06 24 14 10 0 0 0 1 0 1
27 01/07 - 07/07 48 23 25 0 0 0 4 0 4
28 08/07 - 14/07 71 59 12 0 0 0 2 0 2
29 15/07 - 21/07 81 68 13 0 0 0 2 0 2
30 22/07 - 28/07 65 49 16 0 0 0 0 0 0
31 29/07 - 04/08 60 56 4 0 0 0 2 2 0
32 05/08 - 11/08 55 41 14 0 0 0 1 0 1
33 12/08 - 18/08 85 64 21 0 0 0 3 0 3
34 19/08 - 25/08 67 50 17 0 0 0 1 0 1
35 26/08 - 01/09 71 38 33 0 0 0 0 0 0
36 02/09 - 08/09 100 47 53 0 0 0 0 0 0
37 09/09 - 15/09 96 56 40 0 0 0 0 0 0
38 16/09 - 22/09 86 54 32 0 0 0 0 0 0
39 23/09 - 29/09 98 68 30 0 0 0 0 0 0
40 30/09 - 06/10 82 66 16 0 0 0 1 0 1
41 07/10 - 13/10 65 53 12 0 0 0 1 0 1
42 14/10 - 20/10 48 36 12 0 0 0 0 0 0
43 21/10 - 27/10 60 45 15 0 0 0 4 2 2
44 28/10 - 03/11 90 70 20 0 0 0 4 2 2
45 04/11 - 10/11 101 68 33 0 0 0 7 4 3
46 11/11 - 17/11 100 77 23 0 0 0 4 3 1
47 18/11 - 24/11 110 86 24 0 0 0 2 0 2
48 25/11 - 01/12 115 86 29 0 0 0 3 3 0
49 02/12 - 08/12 113 83 30 0 0 0 4 1 3
50 09/12 - 15/12 112 89 23 0 0 0 0 0 0
51 16/12 - 22/12 134 97 37 0 0 0 2 1 1
52 23/12 - 29/12 85 66 19 0 0 0 1 1 0
 
Remarks:
1. Figures are subject to minor adjustments.
2. Multiple specimens may have been received for testing from the same patient.
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