Skip to content

Influenza virus subtyping in 2018

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
 
Remarks:
1. Figures are subject to minor adjustments.
2. Multiple specimens may have been received for testing from the same patient.