Table 5.
Characteristics and Antibodies Against Influenza A(H7N9) and A(H5N1) Viruses Among General Population in Serological Surveys Conducted in March and September 2013
| Characteristics | March Serosurvey (n = 417), No. (%) |
September Serosurvey (n = 408), No. (%) |
||||
|---|---|---|---|---|---|---|
| Overall | H7N9 Titer ≥1:80 | H5N1 Titer ≥1:80 | Overall | H7N9 Titer ≥1:80 | H5N1 Titer ≥1:80 | |
| Age, y | ||||||
| 0–4 | 61 (14.6) | 0 | 0 | 59 (14.5) | 0 | 0 |
| 5–14 | 87 (20.9) | 0 | 0 | 73 (17.9) | 0 | 0 |
| 15–24 | 65 (15.6) | 0 | 0 | 56 (13.7) | 0 | 0 |
| 25–59 | 152 (36.5) | 0 | 0 | 154 (37.7) | 2 | 1 |
| ≥60 | 52 (12.5) | 0 | 0 | 66 (16.2) | 0 | 0 |
| Sex | ||||||
| Male | 203 (48.7) | 0 | 0 | 194 (47.5) | 0 | 0 |
| Female | 214 (51.3) | 0 | 0 | 214 (52.5) | 0 | 0 |
| District | ||||||
| With environmental swabs tested positive for H7N9 | 357 (85.6) | 0 | 0 | 348 (85.3) | 0 | 0 |
| Without environmental swabs tested positive for H7N9 | 60 (14.4) | 0 | 0 | 60 (14.7) | 0 | 0 |
| Total | 417 | 0 | 0 | 408 | 2 | 1 |