90% is still a ginormous reduction over 0% But those aren't the numbers. The pre-vaccine infection rate was 22.7% (not 96% nor 90%), and the vaccinated infect

90% is still a ginormous reduction over 0% But those aren't the numbers. The pre-vaccine infection rate was 22.7% (not 96% nor 90%), and the vaccinated infection rate was at least 4% (probably much higher; the 4% represents the cases where the vaccine failed to protect and the subject proceeded to develop HPV-caused disease), using their figures. So, you're looking at a best-case 18-point difference, not 90 points. Still valuable, but hardly eradication.