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Geometric mean titers of antibodies against swine viruses.
| Geometric mean titer, by virus |
|||
|---|---|---|---|
| Study population | Swine H1N1 | Swine H1N2 | Swine H3N2 |
| Farmers | 10.3a | 12.5a | 22 |
| Meat processing workers | 6.2 | 6.8 | 54 |
| Veterinarians | 8.9a | 11.3a | 28.3 |
| Control subjects | 5.1 | 5.6 | 37.9 |
The geometric mean titers for farmers and veterinarians was found to differ from that for control subjects by the Wilcoxon rank sum analysis with normal approximation.
