Vaccine effectiveness against anal HPV among men who have sex with men aged 18-45 years attending sexual health clinics in three United States cities, 2018-2023.
Carla L DeSistoRachel L WinerTroy D QuerecDamilola DadaPreeti PathelaLenore AsbelJohn LinJennifer TangAlfred IqbalElissa MeitesElizabeth R UngerLauri E MarkowitzPublished in: The Journal of infectious diseases (2024)
We found high VE against anal 4vHPV-type prevalence among MSM aged 18-26 who were vaccinated at age <18. Lower VE was observed among MSM ages 27-45 who were vaccinated at age 18-26 or ≥2 years before specimen collection. While ideally vaccination should be given at younger ages, vaccination can prevent some future infections in this population.