An FDA advisory committee voted 13 to 0 to endorse Merck vaccine, Gardasil, which blocks a sexually transmitted virus that causes cervical cancer. U.S. advisers unanimously said it was safe and effective for women and girls as young as 9 years old. The panel said it was persuaded by Merck’s data showing Gardasil prevented early-stage cervical cancer and precancerous lesions. Gardasil targets common types of the sexually transmitted human papilloma virus, or HPV, which causes genital and sk...