The purpose of Cervarix is to provide protection against certain types of human papillomavirus (HPV) infections. HPV is a common sexually transmitted infection that can lead to various health issues, including cervical cancer, genital warts, and other cancers of the genital and anal areas. Cervarix specifically targets HPV types 16 and 18, which are responsible for causing the majority of cervical cancer cases worldwide. By administering the Cervarix vaccine, the immune system is stimulated to produce antibodies against these HPV types. This immune response helps prevent HPV infection, reduces the risk of developing cervical cancer, and can also lower the incidence of other HPV-related diseases.