From: The first detection of influenza in the Finnish pig population: a retrospective study
Sample type | Number of positive farms | |
---|---|---|
 | Avian-like H1N1 virus | Pandemic H1N1 virus A(H1N1) pdm09 |
Year 2009 Lung tissue | 7 | 0 |
Nasal swabs | 5 | 1 |
Year 2010*Lung tissue | 1 | 1 |
Nasal swabs | 1 | 2 |