Researchers from the University of Michigan examined vaccination against human papillomavirus (HPV) in young adults versus adolescents for an 8-year period, from 2010 to 2018. Regardless of what age they were at first dose, more survey respondents opted for vaccination as the years passed. Still, compared with adolescents—68% of whom received one or more HPV doses by 2018—overall takeup among young adults was low.