Speaking of vaccines, did you know the HPV vaccine (Gardasil 9) is 99% effective in preventing HPV (human papilloma virus), the virus that most often causes cervical cancer? HPV is an extremely common STD that consists of thousands of strains, some of which cause cervical cancer. Although cervical cancer is highly preventable, in the U.S., nearly 13,000 women are diagnosed each year and more than 4,000 die from it each year. Highly effective in preventing HPV infection, the HPV vaccine is routinely recommended for boys and girls ages 11 and 12.