Awareness of human papillomavirus (HPV) infection and transmission may help prevent its spread through behaviour modification. Abstinence prevents transmission of HPV.[3]Wiley DJ, Douglas J, Beutner K, et al. External genital warts: diagnosis, treatment, and prevention. Clin Infect Dis. 2002 Oct 15;35(Suppl 2):S210-24.
https://academic.oup.com/cid/article/35/Supplement_2/S210/316436
http://www.ncbi.nlm.nih.gov/pubmed/12353208?tool=bestpractice.com
[28]Henderson Z, Irwin KL, Montaño DE, et al. Anogenital warts knowledge and counseling practices of US clinicians: results from a national survey. Sex Transm Dis. 2007 Sep;34(9):644-52.
http://www.ncbi.nlm.nih.gov/pubmed/17413682?tool=bestpractice.com
Barrier methods of contraception such as condoms may also decrease the risk of HPV transmission, but they are not entirely effective.[28]Henderson Z, Irwin KL, Montaño DE, et al. Anogenital warts knowledge and counseling practices of US clinicians: results from a national survey. Sex Transm Dis. 2007 Sep;34(9):644-52.
http://www.ncbi.nlm.nih.gov/pubmed/17413682?tool=bestpractice.com
CDC: condom fact sheet in brief
Opens in new window
There are 3 HPV vaccines available: bivalent (types 16 and 18); quadrivalent (types 6, 11, 16, and 18); and 9-valent (types 6, 11, 16, 18, 31, 33, 45, 52, and 58). The quadrivalent and 9-valent vaccines are approved to prevent genital warts. In the US, only the 9-valent vaccine is available, and is approved for use in females and males aged 9 to 45 years of age. In the UK, both the quadrivalent and 9-valent vaccines are available. Vaccine availability and immunisation schedules vary between countries; healthcare providers should consult local guidance.
The US schedule for HPV immunisation:
CDC: recommended immunization schedule for children and adolescents ages 18 years or younger
Opens in new window
CDC: recommended adult immunization schedule for ages 19 years or older
Opens in new window
All children and adults ≤26 years should receive a 2- or 3-dose series of HPV vaccine depending on age at initial vaccination or condition.[29]Centers for Disease Control and Prevention. Child and adolescent immunization schedule by age: recommendations of ages 18 years or younger, United States, 2024. Nov 2023 [internet publication].
https://www.cdc.gov/vaccines/schedules/hcp/imz/child-adolescent.html
[30]Centers for Disease Control and Prevention. Adult immunization schedule by age: recommendations of ages 19 years or older, United States, 2024. Nov 2023 [internet publication].
https://www.cdc.gov/vaccines/schedules/hcp/imz/adult.html
Routine HPV vaccination is recommended for adolescents at age 11 or 12 years, although it can be given from age 9 years.[29]Centers for Disease Control and Prevention. Child and adolescent immunization schedule by age: recommendations of ages 18 years or younger, United States, 2024. Nov 2023 [internet publication].
https://www.cdc.gov/vaccines/schedules/hcp/imz/child-adolescent.html
[31]Meites E, Szilagyi PG, Chesson HW, et al. Human papillomavirus vaccination for adults: updated recommendations of the Advisory Committee on Immunization Practices. MMWR Morb Mortal Wkly Rep. 2019 Aug 16;68(32):698-702.
https://www.cdc.gov/mmwr/volumes/68/wr/mm6832a3.htm?s_cid=mm6832a3_w
http://www.ncbi.nlm.nih.gov/pubmed/31415491?tool=bestpractice.com
Healthy adolescents aged 9 to 14 years should receive 2 doses of HPV vaccine; the second dose should be administered 6 to 12 months after the first dose.[31]Meites E, Szilagyi PG, Chesson HW, et al. Human papillomavirus vaccination for adults: updated recommendations of the Advisory Committee on Immunization Practices. MMWR Morb Mortal Wkly Rep. 2019 Aug 16;68(32):698-702.
https://www.cdc.gov/mmwr/volumes/68/wr/mm6832a3.htm?s_cid=mm6832a3_w
http://www.ncbi.nlm.nih.gov/pubmed/31415491?tool=bestpractice.com
For those initiating vaccination on or after their 15th birthday, 3 doses of HPV vaccine are recommended (0, 1-2, 6 month schedule).[31]Meites E, Szilagyi PG, Chesson HW, et al. Human papillomavirus vaccination for adults: updated recommendations of the Advisory Committee on Immunization Practices. MMWR Morb Mortal Wkly Rep. 2019 Aug 16;68(32):698-702.
https://www.cdc.gov/mmwr/volumes/68/wr/mm6832a3.htm?s_cid=mm6832a3_w
http://www.ncbi.nlm.nih.gov/pubmed/31415491?tool=bestpractice.com
Immunocompromised people should receive a 3-dose series, even if vaccination is initiated at age 9-14 years.[29]Centers for Disease Control and Prevention. Child and adolescent immunization schedule by age: recommendations of ages 18 years or younger, United States, 2024. Nov 2023 [internet publication].
https://www.cdc.gov/vaccines/schedules/hcp/imz/child-adolescent.html
[30]Centers for Disease Control and Prevention. Adult immunization schedule by age: recommendations of ages 19 years or older, United States, 2024. Nov 2023 [internet publication].
https://www.cdc.gov/vaccines/schedules/hcp/imz/adult.html
Shared clinical decision-making regarding HPV catch-up vaccination is recommended in people aged 27 to 45 years who were not adequately vaccinated when younger.[30]Centers for Disease Control and Prevention. Adult immunization schedule by age: recommendations of ages 19 years or older, United States, 2024. Nov 2023 [internet publication].
https://www.cdc.gov/vaccines/schedules/hcp/imz/adult.html
[32]The American College of Obstetricians and Gynecologists. Committee opinion no. 809: human papillomavirus vaccination. Aug 2020 [internet publication].
https://www.acog.org/clinical/clinical-guidance/committee-opinion/articles/2020/08/human-papillomavirus-vaccination
HPV vaccination is not recommended in pregnant women.[30]Centers for Disease Control and Prevention. Adult immunization schedule by age: recommendations of ages 19 years or older, United States, 2024. Nov 2023 [internet publication].
https://www.cdc.gov/vaccines/schedules/hcp/imz/adult.html
The UK schedule for HPV immunisation:
UK HSA: routine childhood immunisation schedule
Opens in new window
Routine HPV vaccination is recommended for all children aged 12 to 13 years, usually offered as part of school vaccination programmes.[33]UK Health Security Agency. HPV vaccination guidance for healthcare practitioners. Jun 2023 [internet publication].
https://www.gov.uk/government/publications/hpv-universal-vaccination-guidance-for-health-professionals/hpv-vaccination-guidance-for-healthcare-practitioners
A one-dose schedule is recommended for immunocompetent children, adolescents, and adults aged <25 years from September 2023.[33]UK Health Security Agency. HPV vaccination guidance for healthcare practitioners. Jun 2023 [internet publication].
https://www.gov.uk/government/publications/hpv-universal-vaccination-guidance-for-health-professionals/hpv-vaccination-guidance-for-healthcare-practitioners
[34]UK Health Security Agency. Human papillomavirus (HPV): the green book, chapter 18a. Jun 2023 [internet publication].
https://www.gov.uk/government/publications/human-papillomavirus-hpv-the-green-book-chapter-18a
Those who have received one dose by September 2023 are considered fully vaccinated. Catch-up vaccination recommended up to age 25 years.
HPV vaccination is also recommended for gay, bisexual, and other men who have sex with men aged ≤45 years attending specialist sexual health services or HIV clinics.[33]UK Health Security Agency. HPV vaccination guidance for healthcare practitioners. Jun 2023 [internet publication].
https://www.gov.uk/government/publications/hpv-universal-vaccination-guidance-for-health-professionals/hpv-vaccination-guidance-for-healthcare-practitioners
[34]UK Health Security Agency. Human papillomavirus (HPV): the green book, chapter 18a. Jun 2023 [internet publication].
https://www.gov.uk/government/publications/human-papillomavirus-hpv-the-green-book-chapter-18a
Other people with a similar risk (e.g., transgender people, sex workers, men and women with HIV) may also benefit from HPV vaccination. Eligible adolescents and adults aged <25 years should receive one dose. Eligible adults aged 25-45 years should receive two doses (0, 6-24 month schedule).[34]UK Health Security Agency. Human papillomavirus (HPV): the green book, chapter 18a. Jun 2023 [internet publication].
https://www.gov.uk/government/publications/human-papillomavirus-hpv-the-green-book-chapter-18a
People who are immunocompromised or HIV-positive, including those on antiretroviral therapy, should receive three doses (0, 1, 4-6 month schedule).[34]UK Health Security Agency. Human papillomavirus (HPV): the green book, chapter 18a. Jun 2023 [internet publication].
https://www.gov.uk/government/publications/human-papillomavirus-hpv-the-green-book-chapter-18a
If a patient has previously had an abnormal Pap test or history of genital warts, HPV vaccination is still recommended.[35]Markowitz LE, Dunne EF, Saraiya M, et al. Human papillomavirus vaccination: recommendations of the Advisory Committee on Immunization Practices (ACIP). MMWR Recomm Rep. 2014 Aug 29;63(rr-05):1-30.
https://www.cdc.gov/mmwr/preview/mmwrhtml/rr6305a1.htm
http://www.ncbi.nlm.nih.gov/pubmed/25167164?tool=bestpractice.com
Male circumcision may protect against HPV infection, and therefore related disease, in both men and women.[36]Albero G, Castellsagué X, Giuliano AR, et al. Male circumcision and genital human papillomavirus: a systematic review and meta-analysis. Sex Transm Dis. 2012 Feb;39(2):104-13.
http://www.ncbi.nlm.nih.gov/pubmed/22249298?tool=bestpractice.com
Further research is required.
Impact of HPV vaccination
Within 6 years of HPV vaccination availability, HPV 6/11/16/18 infections among Australian women (aged 18-24) and sexually active US females (aged 14-24) decreased by 86% after 3 doses, and 76% after ≥1 dose, respectively, compared with contemporaneous unvaccinated women.[37]Garland SM, Kjaer SK, Muñoz N, et al. Impact and effectiveness of the quadrivalent human papillomavirus vaccine: a systematic review of 10 years of real-world experience. Clin Infect Dis. 2016 Aug 15;63(4):519-27.
https://academic.oup.com/cid/article/63/4/519/2566619
http://www.ncbi.nlm.nih.gov/pubmed/27230391?tool=bestpractice.com
Decreased HPV infection prevalence among unvaccinated females in the vaccine era compared with the pre-vaccine era suggested herd protection.[37]Garland SM, Kjaer SK, Muñoz N, et al. Impact and effectiveness of the quadrivalent human papillomavirus vaccine: a systematic review of 10 years of real-world experience. Clin Infect Dis. 2016 Aug 15;63(4):519-27.
https://academic.oup.com/cid/article/63/4/519/2566619
http://www.ncbi.nlm.nih.gov/pubmed/27230391?tool=bestpractice.com
In 2011, genital wart prevalence had decreased by up to 92.6% among HPV vaccine-eligible Australian females aged <21 years (from 11.5% in 2007 to 0.85% in 2011).[38]Mariani L, Vici P, Suligoi B, et al. Early direct and indirect impact of quadrivalent HPV (4HPV) vaccine on genital warts: a systematic review. Adv Ther. 2015 Jan;32(1):10-30.
https://link.springer.com/article/10.1007%2Fs12325-015-0178-4
http://www.ncbi.nlm.nih.gov/pubmed/25620536?tool=bestpractice.com
[39]Ali H, Donovan B, Wand H, et al. Genital warts in young Australians five years into national human papillomavirus vaccination programme: national surveillance data. BMJ. 2013 Apr 18;346:f2032.
https://www.bmj.com/content/346/bmj.f2032.long
http://www.ncbi.nlm.nih.gov/pubmed/23599298?tool=bestpractice.com
None of the females aged <21 years who had been vaccinated were diagnosed with genital warts.[38]Mariani L, Vici P, Suligoi B, et al. Early direct and indirect impact of quadrivalent HPV (4HPV) vaccine on genital warts: a systematic review. Adv Ther. 2015 Jan;32(1):10-30.
https://link.springer.com/article/10.1007%2Fs12325-015-0178-4
http://www.ncbi.nlm.nih.gov/pubmed/25620536?tool=bestpractice.com
[39]Ali H, Donovan B, Wand H, et al. Genital warts in young Australians five years into national human papillomavirus vaccination programme: national surveillance data. BMJ. 2013 Apr 18;346:f2032.
https://www.bmj.com/content/346/bmj.f2032.long
http://www.ncbi.nlm.nih.gov/pubmed/23599298?tool=bestpractice.com