Table 1. Virus isolation yielded 513 AIV isolates consisting of 43 different HA/NA combinations, although exact HA/NA combinations could only be determined for 413 isolates^*.

	H1	H2	H3	H4	H5	H6	H7	H8	H9	H10	H11
N1	7		7		8	6	3
N2	2	1	20	20	130	9	3			2	1
N3		4	1		19		92			1
N4						3	2	1
N5			1		3		1
N6			10	50	2		5
N7					1		8			10
N8			19	13	1	1	1			3
N9			2	1	3		6				10

* Mixed infections, consisting of simultaneous infection with multiple viruses were also identified in 20 additional samples, but the exact HA/NA combination could not be determined.