reply to post by kiwifoot
Just in case reuters isn't that reliable for you:
Humans May Give Swine Flu To Pigs In New Twist To Pandemic
LONDON (Reuters) - There is a growing risk that pigs will catch the new H1N1 flu strain -- commonly known as swine flu -- from humans, German researchers said on Thursday.
Widespread transmission from people to pigs could mix up virus strains further, leading to unpredictable changes in the disease.
There have already been a handful of suspected cases of humans passing the current pandemic H1N1 virus to swine. The latest German research confirms it is infectious to pigs and can spread rapidly.
Encouragingly, though, while the virus spread quickly among the pigs, it did not spread to five chickens housed with them.