Routine scanning surveillance has confirmed that the strain of the virus found is virtually identical to strains currently circulating in humans. It is not uncommon for pigs to be affected by influenza. Influenza in pigs is not a notifiable disease.
Voluntary measures set out in a new Code of Practice on influenza in pigs drawn up by the pig industry, Defra, Devolved Administrations and other government bodies, are in place on the farm.
http://www.defra.gov.uk/news/2009/091202a.htm