Table 2. HI test results of egg yolk antibodies against AIVs species.
| HI antibodies to AIV subtypes (%) | |||||||
|---|---|---|---|---|---|---|---|
| H5 | H7 | H9 | H5 + H7 | H5 + H9 | H7 + H9 | H5 + H7 + H9 | |
| Little Egrets | 1/29 (3.45) | 2/29 (6.90) | 0/29 (0) | 13/29 (44.83) | 0/29 (0) | 0/29 (0) | 4/29 (13.79) |
| Black-crowned Night Herons | 5/35 (14.29) | 2/35 (5.71) | 0/35 (0) | 12/35 (34.29) | 0/35 (0) | 0/35 (0) | 0/35 (0) |
HI, hemagglutination-inhibition; AIV, avian influenza virus. Numerator indicates the number of HI-antibody-positive birds; denominator is the total number of examined birds.