Cervical cancer is a disease in which cancer cells form in the tissues of the cervix. It is the fourth most common cancer in women, and also result in 250,000 deaths worldwide. Almost 99% of this disease is due to the Human Papillomavirus (HPV), an extremely common virus transmitted through sexual contact.
Researchers from the Department of Medical Epidemiology and Biostatistics at Karolinska Institutet have claimed that the women who have already vaccinated against HPV will have a low chance of developing cervical cancer. Although initial studies had proved the efficacy of the vaccine, it might demand to conduct a large population-based study for more acceptance. Therefore, this latest study showed the link between the HPV vaccine and invasive cervical cancer in a large population.
It included 1.7 million women of the ages between 10 and 30 for about 11 years. Out of the total sample, 500,000 women got HPV vaccination before 17. Only 19 vaccinated women were diagnosed with cervical cancer compared to 538 unvaccinated women.
The results became more significant as the vaccinated women showed a reduced risk of developing cervical cancer. The women who got vaccination before 17 had lessened the risk by 88 percent. Also, the women halved their risk of getting cancer when they got vaccination between 17 to 30.
HPV vaccination will have no effect when the people have a pre-existing infection. Women who had vaccinated at a young age were more likely safer than those who did in later life. Therefore, the study clearly showed that the HPV vaccine holds well to prevent cervical cancer, and so it needs to be continued.
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Source: Medical Xpress