A Answers (3)
HPV types 16 and 18 are responsible for the majority of cervical cancer and high grade dysplasia cases in the United States. HPV types 6 and 11 are responsible for low grade gynecologic infections and genital warts. The Gardesil vaccine protects patients from all four subtypes of HPV.
Human papilloma virus is a DNA virus with over 100 subtypes. Typical subtypes associated with malignancy/cancer include 16, 18, 31 and 33.
Riverside Cancer Care Center answered
Some types of HPV are referred to as "low-risk" viruses because they rarely cause lesions that develop into cancer. HPV types that are more likely to lead to the development of cancer are referred to as "high-risk." Both high-risk and low-risk types of HPV can cause the growth of abnormal cells, but only the high-risk types of HPV lead to cancer. Sexually transmitted, high-risk HPVs include types 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66, 68, and 73. These high-risk types of HPV cause growths on the cervix that are usually flat and nearly invisible, as compared with the external warts caused by low-risk types HPV–6 and HPV–11. HPV types 16 and 18 together cause about 70 percent of cervical cancers. It is important to note, however, that the great majority of high-risk HPV infections go away on their own and do not cause cancer.
This answer is based on source information from the National Cancer Institute.