However, Yang said more research is needed before changes are made regarding cervical cancer screening and the optimal dosage and timing of vaccinations. An estimated 1,500 Canadian women were diagnosed with cervical cancer in 2015 and about 380 died from the disease, the Canadian Cancer Society says. Among vaccinated women in the study, Pap screening showed 11.8 per cent had abnormal cervical cells, compared to 16.1 per cent of those who hadn't been immunized against HPV. The CMAJ study also found that females who had been vaccinated against HPV were more likely than non-immunized females to undergo Pap tests to screen for cervical cancer. HPV vaccinations are effective in reducing cervical cell abnormalities, particularly ones that have potential to become cancerous later in life, researchers have found.

Source: CBC News July 05, 2016 14:26 UTC