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..
All the confusion about the total number of states in the USA arises mainly from the ignorance about the 2 states off the North American mainland. Though the actual number is 50, some people are of the opinion that there are 48 states; others believe that there 49, and some even go to the extent of asserting that there are 51 states in total.