What do systematic reviews say?

Three doses HPV vaccine vs control

Three doses HPV vaccine probably leads to lower anogenital warts at up to 3‐year compared with control (moderate certainty).

• Comparison of different human papillomavirus (HPV) vaccine types and dose schedules for prevention of HPV‐related… 2019 · Cochrane Headline outcomes only
  Rate ratio 0.11 [0.03, 0.38]
  1 study · 2805 participants
  Moderate