Table 1. Seroprevalence of NDV and AIV (H9N2) antibody (HI test; Log2) in unvaccinated backyard chickens in Bushehr province, Iran, 2012-2013.

Counties	No. of villages	No. of blood samples	Newcastle disease		Avian influenza (H9N2)
			No. of positive samples [n (%)]	HI titer (mean; Log2)	No. of positive samples [n (%)]	HI titer (mean; Log2)
Dashtestan	11	541	222 (41.00%)	5.89	248 (45.84%)	5.68
Bushehr	5	225	70 (31.10%)	5.76	57 (25.33%)	5.79
Kangan	3	204	102 (50.00%)	5.73	69 (33.83%)	5.55
Dashti	5	166	17 (10.24%)	5.41	17 (10.24%)	5.35
Gonaveh	6	225	108 (48.00%)	5.63	134 (59.55%)	5.34
Tangestan	2	169	95 (56.20%)	6.05	70 (41.42%)	6.41
Total	32	1 530	614 (40.13%)	5.75	595 (39.00%)	5.61