SANE Vax, Inc. By Norma Erickson March 27, 2011 HPV Genotyping Clinical Update National Cancer Institute studies have shown that women with HPV types 16 and 18 have about a 20% risk of progressing to CIN3 over 10 years despite negative Pap tests, and colposcopy may be useful for these women.  However, most HPV […]