Should I get the Gardasil vaccine?
Sarah Martinez
Updated on April 14, 2026
Herein, how effective is the HPV vaccine?
In clinical trials, the HPV vaccine was over 99% effective at preventing pre-cancer caused by HPV types 16 or 18 in young women, which are linked to 70% of cervical cancers.
One may also ask, is the Gardasil shot safe? Worldwide studies have shown the vaccine to be virtually 100 percent effective and very safe, with the FDA concluding that the vast majority of side effects are minor, and that benefits continue to outweigh adverse events.
Thereof, how long is the Gardasil vaccine good for?
Research suggests the vaccine lasts at least four years. Long-term results are not yet certain.
Why is HPV vaccine not recommended for adults?
The vaccine won't protect people against types of HPV to which they've already been exposed, and many sexually active people have been exposed to at least some HPV types by their late 20s. That makes it tougher for the vaccine to have an impact in this age group.