the reason is no one realized hpv was connected to much more than cervical cancer until fairly recently.
I think we will eventually discover that almost all cancers are caused by viruses, and future healthcare will be all about how to stop the spread of viruses where vaccines don't work well.
alt Hacker News
I think we will eventually discover that almost all cancers are caused by viruses, and future healthcare will be all about how to stop the spread of viruses where vaccines don't work well.