I should add to that-
Manufacturers of VIOX, and we all know how well THAT was "tested".
Included in the cost of your shares is the price being paid for that piece of my heart they took.
Vioxx is a drug, not a harmless foreign protein (along with yeast and aluminum and some other more-or-less inert stuff) which generates antibodies in your system and is then cleansed from your blood and passed harmlessly. If Gardasil is fine after 5 years, it is fine forever.