Table 2. HPAI H5N1 transmission directions of genetic clades.

Clade	Flyway	Number of sample sites	Direction	Concentration	P-value
1	East Asian-Australasian Flyway	23	293.94	0.2586	0.001
	Central Asian Flyway	3	277.76	0.9904	0.002
	West Asian-East African Flyway	5	217.89	0.4000	0.001
	Black Sea/Mediterranean Flyway	7	215.29	0.1054	0.388
	East Atlantic Flyway	3	274.00	0.6667	0.007
2.1.3	East Asian-Australasian Flyway	42	71.49	0.4319	0.001
	Central Asian Flyway	7	318.69	0.6147	0.001
	West Asian-East African Flyway	6	331.50	0.4322	0.019
	Black Sea/Mediterranean Flyway	6	216.65	0.9422	0.001
	West Pacific Flyway	12	37.28	0.2711	0.002
2.2.1	East Asian-Australasian Flyway	59	350.34	0.1655	0.001
	Central Asian Flyway	19	258.57	0.1242	0.005
	West Asian-East African Flyway	14	237.58	0.0814	0.171
	Black Sea/Mediterranean Flyway	23	287.90	0.2934	0.001
	West Pacific Flyway	21	329.68	0.4999	0.001
2.2.2	East Asian-Australasian Flyway	10	352.79	0.2973	0.007
	Central Asian Flyway	8	20.58	0.1163	0.264
2.3.2	East Asian-Australasian Flyway	91	39.89	0.1505	0.001
	Central Asian Flyway	27	203.83	0.2671	0.001
	West Asian-East African Flyway	17	52.82	0.1577	0.001
	Black Sea/Mediterranean Flyway	20	347.13	0.1649	0.001
	West Pacific Flyway	25	272.64	0.1891	0.001
2.3.4	East Asian-Australasian Flyway	51	18.93	0.0370	0.049
	Central Asian Flyway	20	279.67	0.2447	0.001
	West Asian-East African Flyway	12	207.38	0.5083	0.001
	Black Sea/Mediterranean Flyway	13	191.97	0.1112	0.062
	West Pacific Flyway	20	279.67	0.2447	0.001
7	East Asian-Australasian Flyway	14	105.94	0.0945	0.238
	Central Asian Flyway	6	234.46	0.3037	0.066
	West Asian-East African Flyway	4	197.55	0.5000	0.002