It is always good to have one's assumptions challenged. We assume that prevention is better than cure. But prevention may take a long time, and people are dying now.
This interesting paper argues that our focus on HPV vaccine to control cervical cancer may, at least in poorer countries, be wrong. It may be better to put the effort into screening, not with Pap smears but with VIA - visual inspection with acetic acid. VIA is a 'see and treat' technique - no need to return to the clinic for a second visit after the screen result is known. This has huge advantages in many communities.
Vaccines are propelled by commercial forces, but VIA isn't.