Human papillomavirus (HPV) is the most common sexually transmitted infection with most sexually active men and women being exposed to the virus at some point during their lifetime.1,2.
The Great Seal of the United States of America during the war. During the American Civil War, the Union referred to the United States of America and specifically to the national government and the 23 free states and five border states that supported it. The Union was opposed by 11 southern slave states that formed the Confederate States, or the Confederacy..
U.S.A., United States, United States of America, US, USA, America, the States, U.S. - North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776.