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.
Fig. 2. Introduced by Europeans to North America, the field drum (Fig. 2) was first used by the colonists as a signaling instrument, to convey military orders and to call people to church or other gatherings. In 1610, Jamestown colonists in Virginia used a field drum to lure native Powhatan people into a deadly ambush.