Table 4.
Seroprevalence of antibodies against different swine influenza virus in pigs in Guangxi from 2009 to 2013
| Location | Serum samplesa | No. (%) of sera positive | ||
|---|---|---|---|---|
| EA H1N1 | HL H3N2 | EA H1N1 + HL H3N2 | ||
| Nanning | 283 | 86 (30.4) | 166 (58.7) | 45(15.9) |
| Beihai | 60 | 24 (40.0) | 29 (48.3) | 8(13.3) |
| Fangchenggang | 40 | 3 (7.5) | 5 (12.5) | 1(2.5) |
| Liuzhou | 101 | 28 (27.7) | 17 (16.6) | 8(7.9) |
| Laibin | 130 | 31 (23.8) | 4 (3.1) | 2(1.5) |
| Guilin | 135 | 33 (24.4) | 33 (24.4) | 16(11.9) |
| Hezhou | 67 | 18 (26.9) | 17 (25.4) | 9(13.4) |
| Hechi | 80 | 9 (11.2) | 3 (1.3) | 1(1.3) |
| Baise | 60 | 6 (10.0) | 1 (1.7) | 0(0) |
| Yulin | 134 | 44 (32.8) | 51 (38.1) | 25(18.7) |
| Guigang | 80 | 14 (17.5) | 19 (23.8) | 11(13.8) |
| Total | 1170 | 296 (25.3) | 345 (29.5) | 126(10.8) |
aEurasian avian-like (EA) H1N1, A/swine/Guangxi/BB2/2013(H1N1); Human-like swine (HL) H3N2, A/swine/Guangxi/JGB4/2013 (H3N2)