title: [HPV prophylactic vaccines].
abstract: Since 2007, two prophylactic vaccines against Human Papillomavirus (HPV) infection and HPV. induced lesions (both precancerous dysplasia and cancer) have been registered in Belgium. In multicentre randomized trials including more than 64,000 patients, these vaccines were shown to be highly efficient against the occurrence of condyloma and of dysplastic lesion in the cervix, vagina and vulva in females and in the anus in males. These vaccines display an excellent tolerance and safety profile, the most common adverse event being minor and transient side effects at the injection site. The protection given by these vaccines is more important in subjects that have not been in contact with HPV previously ; moreover the title of neutralizing antibodies against HPV are significantly higher in children vaccinated before 15 years-old age compared to young person vaccinated after this age. For these two reasons, it is recommended to vaccinate before the first sexual relationships. Recently, several studies have demonstrated that vaccination by two doses given at 0 and 6 months in children before 15 years-old was equivalent to the three doses scheme that should be given at 0, 1 or 2 and 6 months in subjects aged 15 years or more. In the countries that have achieved a high vaccine coverage among their young female population, the prevalence of HPV infection and the incidence of high grade cervical dysplasia have significantly decreased while condyloma has almost disappeared four years after the implementation of HPV vaccination. In HIV-positive subjects who are particularly susceptible to infection and lesions induced by HPV, vaccination brings levels of antibody comparable to what is found in the general population with similar safety.
authors: D
authors: D
authors: Konopnicki
mesh_terms: D052685:Alphapapillomavirus / Q000276:immunology; D003218:Condylomata Acuminata / Q000517:prevention & control / Q000821:virology; D005260:Female; D006801:Humans; D008297:Male; D030361:Papillomavirus Infections / Q000150:complications / Q000517:prevention & control*; D053918:Papillomavirus Vaccines / Q000627:therapeutic use*; D002583:Uterine Cervical Neoplasms / Q000517:prevention & control* / Q000821:virology
chemical_list: D053918:Papillomavirus Vaccines