Der er ikke for HPV- vacciner fastsat en minimumgrænse for antistofniveauet associeret med beskyttelse mod CIN grad 2 eller 3, eller persisterende infektion med vaccinerelaterede HPV- typer.
No minimal antibody level associated with protection against CIN of grade 2 or 3 or against persistent infection associated with vaccine HPV types has been identified for HPV vaccines.