Effects of 2 and 3 Vaccinations With the Bivalent Human Papillomavirus (HPV) Vaccine on the Prevalence and Load of HPV in Clearing and Persistent Infections in Young Women.
J Infect Dis
; 228(8): 1012-1022, 2023 10 18.
Article
em En
| MEDLINE
| ID: mdl-36988110
ABSTRACT
BACKGROUND:
Human papillomavirus (HPV) viral load (VL) is associated with persistence, which increases cervical cancer risk. The bivalent vaccine protects against oncogenic HPV-16/18 and cross-protects against several nonvaccine types. We examined the effect of 2-dose (2D) and 3-dose (3D) vaccination on HPV prevalence and VL in clearing infections and persistent infections, 6 years and 12 years postvaccination, respectively.METHODS:
Vaginal swabs collected from the "HPV Amongst Vaccinated and Non-vaccinated Adolescents" study (HAVANA, 3D-eligible) and HAVANA-2 (2D-eligble) participants were genotyped for HPV with the SPF10-DEIA-LiPA25 system. HPV VL was measured with type-specific quantitative polymerase chain reaction (qPCR).RESULTS:
HPV-16, -18, -31, -33, and -45 clearing and/or persistent infection prevalence and HPV-16, -18, and -31 VLs in clearing infections were significantly reduced in 3D-vaccinated women compared to unvaccinated women. Except for HPV-11 and -59 clearing infections, no significant VL differences were observed among vaccinated women, ≤6 and >6 years post-vaccination. Infection numbers were low in 2D-eligible women, with no HPV-16/18 in vaccinated women. No VL differences for the remaining types were found.CONCLUSIONS:
3D vaccination reduces HPV prevalence in clearing infections and persistent infections and decreases HPV VLs in clearing infections, 12 years post-vaccination for vaccine and several nonvaccine types. 2D-eligible women had low infection numbers, with no HPV-16/18 among vaccinated women.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Temas:
Geral
/
Prevencao_e_fatores_de_risco
/
Atos_sexuais
/
Saude_da_mulher
/
Colo_do_utero
/
Colo_do_utero
Base de dados:
MEDLINE
Assunto principal:
Infecções por Papillomavirus
/
Vacinas contra Papillomavirus
Tipo de estudo:
Prevalence_studies
/
Risk_factors_studies
Limite:
Adolescent
/
Female
/
Humans
Idioma:
En
Revista:
J Infect Dis
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Holanda