During the meeting on September 27, 2007, the CIQ took account of the commentaries, carried out the appropriate modifications and adopted the final version of the report. [...] The duration of protection is the element which has the most influence on the impact of the vaccination. [...] An investigation conducted in the winter of 2006 in the area of the Capitale-Nationale reached 471 respondents between the ages of 18 and 69. [...] However, due to the high cost, the CIQ has prioritized their use by trying to find an optimal efficiency, that is to say, by maximizing the effects of the resources consumed; • It is preferable to provide the vaccine against HPV before the onset of sexual relations to take advantage of the maximum efficacy of the vaccines; • It is preferable to provide the vaccine in a primary school environment t [...] The CIQ recommends the establishment of such a register; 6 Institut national de santé publique du Québec Prevention by vaccination of diseases attributed to the human papillomavirus in Québec • The immunization component of the future public health information system Panorama could supply the data on the immunization status against HPV for the residents of Québec which is recorded by vaccinators.