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.
Boos has been in business continuously since 1887. It was in his Effingham, IL blacksmith shop that founder, Conrad Boos first invented what would become the original Boos BlockÂ®. Having harvested sycamore from local wooded areas, and processed it in his sawmill, Conrad brought it to his blacksmith shop for finishing.