Research Article
Clinical Impact of Infection with Pandemic Influenza (H1N1) 2009 Virus in Naïve Nucleus and Multiplier Pig Herds in Norway
Table 3
Duration of clinical signs in herds with reported signs of pig-influenza-like illness.
| | Total no. of herds with obs. clinical signs | One week or less | One to two weeks | Two weeks or more | Unsure about duration |
| | Sows | 17 | 6 | 0 | 8 | 3 | | (i) Reproductive signs | 12 | 2 | 0 | 7 | 3 | | (ii) Only other clinical signs | 5 | 4 | 0 | 1 | 0 | | Piglets | 8 | 4 | 0 | 4 | 0 | | Weaners | 6 | 2 | 0 | 2 | 2 | | Growers, finishers, recruit sows | 8 | 3 | 2 | 2 | 1 |
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