Viral antigens | Antibody titers using HI testa | % (No. of positive samples/total no.) | ||||||
---|---|---|---|---|---|---|---|---|
≤1:20 | 1:40 | 1:80 | 1:160 | 1:320 | 1:640 | 1:1280 | ||
H5N1(RE-5) | 550 | 8 | 2 | 0 | 0 | 0 | 0 | 1.8 % (10/560) |
H5N1(RE-7) | 524 | 36 | 0 | 0 | 0 | 0 | 0 | 6.4 % (36/560) |
H9N2 (A/chicken/Shanghai/10/01) | 294 | 64 | 80 | 74 | 30 | 16 | 2 | 47.5 % (266/560) |
H9N2(A/Chicken/Hebei/4/2008) | 306 | 80 | 76 | 55 | 26 | 15 | 2 | 45.4 % (254/560) |
H7N9(A/Pigeon/Shanghai/S1069/2013) | 560 | 0 | 0 | 0 | 0 | 0 | 0 | 0(0/560) |