The CDC states that HPV (Human Papillomavirus) currently affects about 79 million Americans and is the most common sexually transmitted infection (STI) that nearly all sexually active men and women get it at some point in their lives. HPV is a different virus than HIV and HSV (herpes) that can be passed even when an infected person has no signs or symptoms. Each year, more than 11,000 women in the US get Cervical Cancer because of HPV. All boys and girls ages 11 or 12 years should get vaccinated. Catch-up vaccines are recommended for males through age 21 and for females through age 26.