I just watched this video that mrsD referred to in another forum. It goes for over 9 minutes and takes some time to load, so if you decide to watch it I suggest you start the download and go back to it when it's finished.

http://www.youtube.com/watch?v=nnaiubVJv8E&NR=1

This is not necessarily my own view on the subject but I found the topic interesting, and while it's a discussion about all vaccines and not just swine flu, the speaker mentions MS among the auto-immune diseases he feels have worsened as a result of past and present vaccinations.