Table 2. Mixed infections of different of HA subtypes of LPAIV in chickens and ducks.

Type of mixed infection	Type of mixed infection	Number of case
		Chicken	Duck
1	H1+ H3	0	1
2	H1+ H9	1	0
3	H1+ H4	0	3
4	H3+ H4	4	19
5	H3+ H6	0	3
6	H3+ H11	0	1
7	H3+ H9	0	1
8	H4+ H6	1	1
9	H4+ H9	1	4
10	H4+ H11	1	0
11	H6+ H11	0	3
12	H6+ H9	1	0
13	H9+ H11	0	1
14	H1+ H3+ H6	1	1
15	H1+ H4+ H9	2	0
16	H1+ H6+ H9	1	0
17	H3+ H4+ H6	0	2
18	H3+ H4+ H10	0	1
19	H3+ H4+ H9	0	1
20	H3+ H6+ H11	0	3
21	H4+ H6+ H9	0	1
22	H4 + H6+ H11	1	1
23	H6+ H9+ H11	1	1
24	H3+ H6+ H10+ H11	0	1
25	H3+ H6+ H9 + H11	0	4
26	H3+ H9+ H10+ H11	1	0
27	H4+ H6+ H9+ H11	0	1
28	H3+ H4+ H6 + H9+ H11	0	7
29	H3+ H6+ H9 + H10+ H11	1	9