Table 3.
SRH data of acute serum samples for confirmed equine influenza cases
| Premises number | No. confirmed cases | Seronegative H7N7 and H3N8 | Seronegative H7N7 Seropositive H3N8 | Seropositive H3N8 > H7N7 | Seropositive H3N8 = H7N7 |
|---|---|---|---|---|---|
| 1 | 2 | 1/2 | 1/2 | 0/2 | 0/2 |
| 2 | 9 | 2/9 | 4/9 | 0/9 | 3/9 |
| 3 | 3 | 3/3 | 0/3 | 0/3 | 0/3 |
| 4 | 4 | 4/4 | 0/4 | 0/4 | 0/4 |
| 5 | 21 | 7/21 | 6/21 | 1/21 | 7/21 |
| 6 | 3 | 1/3 | 1/3 | 1/3 | 0/3 |
| 7 | 3 | 2/3 | 1/3 | 0/3 | 0/3 |
| 8 | 4 | 3/4 | 1/4 | 0/4 | 0/4 |
| 9 | 11 | 5/11 | 2/11 | 3/11 | 1/11 |
| Total (%) | 60/135 (44) | 28/60 (47) | 16/60 (27) | 5/60 (8) | 11/60 (18) |
| Clinically affected (%) | 48/60 (80) | 28/28 (100) | 11/16 (69) | 4/5 (80) | 5/11 (46) |
H3N8 > H7N7: H3N8 antibody level >25 mm2 compared with H7N7 antibody level; H3N8 = H7N7: H3N8 antibody level <25 mm2 difference compared with H7N7 antibody level.