8 Vaccination Schedules for Adults Often Overlooked

6. HPV Vaccination - Expanding Age Recommendations and Catch-up Opportunities

Human papillomavirus (HPV) vaccination recommendations for adults have undergone significant expansion in recent years, creating new opportunities for cancer prevention that many adults and healthcare providers have not fully embraced. The Advisory Committee on Immunization Practices now recommends catch-up HPV vaccination for all adults through age 26, with shared clinical decision-making for adults aged 27-45 who were not adequately vaccinated previously. This expanded age range reflects growing evidence that HPV vaccination can provide benefits even for adults who may have been exposed to some HPV types, as the nine-valent vaccine protects against multiple high-risk strains that cause cervical, anal, oropharyngeal, and other cancers. The three-dose vaccination series requires careful timing, with the second dose administered 1-2 months after the first and the third dose given 6 months after the first dose, though many adults struggle to complete the series due to cost concerns, scheduling difficulties, or misconceptions about effectiveness in older populations. Healthcare providers often fail to discuss HPV vaccination with adult patients, particularly those over 21, missing opportunities to prevent cancers that affect both men and women throughout their lives. The cost-effectiveness of HPV vaccination decreases with age due to higher likelihood of previous exposure, but individual risk assessment should consider factors such as new sexual partnerships, limited previous partners, and immunocompromising conditions that may increase susceptibility to persistent HPV infection. Many adults express surprise when learning about HPV vaccination recommendations beyond the traditional adolescent target population, highlighting the need for improved education about adult cancer prevention opportunities.