TABLE 4.
Serum antibody titers of pigeons infected with avian H7N9 or H7N7 determined by ELISA, virus neutralization assay, and HI assay
| Virus and pigeon no. (dpi) | ELISA |
Neutralization of: |
HI of: |
|||
|---|---|---|---|---|---|---|
| Anti-NPa | Anti-H7b | H7N9 | H7N7 | H7N9 | H7N7 | |
| A/Anhui/1/13 (H7N9) | ||||||
| P1 (14) | 19.5 | 104.1 | <10 | <10 | <2 | <2 |
| P2 (14) | 29.9 | 94.3 | <10 | <10 | 2 | <2 |
| P3 (2) | 100.0 | 111.9 | <8 | <8 | 4 | <2 |
| P4 (4) | 95.3 | 115.5 | <8 | <8 | <2 | <2 |
| A/turkey/Germany/AR534/13 (H7N7) | ||||||
| P5 (14) | 44.7 | 93.7 | <10 | <10 | <2 | <2 |
| P6 (14) | 47.0 | 111.6 | <10 | <10 | <2 | <2 |
| P7 (2) | 92.9 | 112.6 | <8 | <8 | <2 | <2 |
| P8 (4) | 98.1 | 132.4 | <8 | <8 | <2 | <2 |
a
Anti-NP ELISA: positive (bold), <55; negative, >65; questionable, 55 to 65.
b
Anti-H7 ELISA: positive (bold), <50; negative, >60; questionable, 50 to 60.