Cytomegalovirus (CMV) is a prevalent pathogen, with 40 to 100 percent of the general population showing prior exposure by serology.1 Up to 20 percent of children in the United States will have contracted CMV before puberty.
The concept of the Sousaphone was created by the American composer and bandmaster John Philip Sousa, putting it in a category with the Wagner tubaâa horn conceptualized by German composer Richard Wagnerâand the Saxophone, one of the numerous inventions of Belgian instrument maker Adolphe Sax.
Thomas Edison invented his tin-foil phonograph, Edison's phonograph was followed by Alexander Graham Bell's graphophone. In 1887 Emile Berliner invented the gramophone and records.he Dictaphone was still in use in the early 1950's.    The first flat, circular record was invented in 1887 by Emile Berliner (1851-1929), a German-born American inventor, who also devised the gramophone to play his disks.