A study conducted in Denmark has shown that after the introduction of the HPV vaccine in 2008, infections from the two most dangerous strains of human papillomavirus (HPV) (types 16 and 18) have been almost completely eradicated. This is a crucial achievement in the prevention of cervical cancer, which is one of the leading causes of death among women worldwide.<\/p>\n
HPV is the main cause of cervical cancer, which most often affects women aged 15 to 44 in Europe. Before the vaccination program began, about three-quarters of cervical cancer cases in Denmark were caused by HPV types 16 and 18. The vaccination campaign, which initially focused on girls aged 12-15, now protects against up to nine high-risk HPV strains that account for about 90% of cervical cancer cases.<\/p>\n
Researchers from Zealand University Hospital studied tens of thousands of cervical cell samples from Danish women between 2017 and 2024. They found that by 2021, the prevalence of HPV16\/18 in vaccinated women was less than 1%, whereas before vaccination, this figure was 15\u201317%. It is impressive that the rate of infections even in unvaccinated women decreased to 5%, which indicates that the vaccine contributed to the creation of herd immunity.<\/p>\n
The sharp decline in high-risk HPV infections is transforming the future of cervical cancer prevention. Once girls vaccinated with the new nine-valent vaccine reach screening age, Danish health organizations may have to consider reducing the frequency and intensity of cervical cancer screening. This could lead to the development of more targeted and cost-effective screening strategies that will benefit women worldwide.<\/p>\n
The study also showed that high-risk HPV strains that were not included in the earlier vaccines are still widespread. Accordingly, continuous monitoring and updating of vaccines are necessary to ensure comprehensive protection.<\/p>\n
The example of Denmark is the best proof of how effective vaccination changes public health. This gives us hope that through large-scale vaccination, cervical cancer will become a rare disease in the future, saving countless lives around the world.<\/p>\n