Infection with which two high-risk HPV strains has been linked to more than 70 percent of all cervical cancer diagnoses?

1. Most HPV infections do not cause disease, but certain high-risk strains can cause precancerous cervical changes. 2. Among the many HPV strains, only a couple are responsible for the large majority of cervical cancer cases. 3. These two variants directly. 4. HPV 6 or HPV 11 and HPV 31 or HPV 33 are both different figures a reader might guess from memory, but neither matches the specific figure given here. 5. HPV 45 or HPV 52 is also incorrect for the same reason: it does not match the specific figure given here. 6. They are HPV 16 and HPV 18, together linked to over 70 percent of cervical cancer diagnoses. _Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 27 "The Reproductive System", p.1305 §Female Reproductive System_