This vaccination was only launched around 2007, the first vaccine.
The participants enrolled in this study in 2002 and this group of women 18 years ago are still being followed up with their antibodies being tested once in a while.
And as far as we know, the original group, there is no need to have a booster vaccination, so that’s the good news. As far as we know, for at least 15 years, there is no need to go for another. Theoretically speaking, we believe that this will last for a lifetime.
