AskYourGran - Despite what you might think,and what you might have read in the media, the swine flu vaccine for last year had eactly the same level of safety testing that every yearly seasonal flu vaccine has.
The only difference, in fact, between the swine flu vaccine and the seasonal flu vaccines released every year was the particular strain of virus - All the other ingredients, such as stabilizers, excipients etc - were exactly the same, and had long term safety data from millions of vaccinations over decades.