One dose of HPV vaccine as effective as two

https://www.nih.gov/news-events/nih-research-matters/one-dose-hpv-vaccine-effective-two At a Glance A single dose of human papillomavirus (HPV) vaccine provided protection comparable to the current standard of two doses. The findings suggest that single-dose vaccine regimens could effectively prevent HPV and the cancers it causes, most notably cervical cancer.