The effectiveness of HPV vaccination is still unknown and according to the CDC, “it may take decades to see population-level impact” from the HPV vaccine.
This statement was made on a video recording of an ACIP Meeting Presentation by Dr. Elizabeth VanDyne on February 12, 2018.
The CDC has since removed this video from YouTube, censoring important vaccine information and making it harder for the public to make informed decisions.
YouTube page for the video in the Internet Archive Wayback Machine (link)
YouTube page as it looks today (link)