“The number of deaths across the world caused by measles has fallen by 74% in the past seven years,” from an estimated 750,000 to 197,000. Measles deaths were reduced in Africa by 89%, in the eastern Mediterranean region by 90%, but only by 42% in the South-East Asian region, where two-thirds of global measles deaths occur. The goal of the Measles Initiative, which involves intensive vaccination campaigns, is to reduce measles deaths worldwide by 90% by 2010. For more information, see the World Health Organization web site.
Works on the incidence of measles and on public measures to prevent measles are both classed in 614.523 Measles, a subdivision of 614.5 Incidence of and public measures to prevent specific diseases and kinds of diseases. Examples are Measles: An Historical Geography of a Major Human Viral Disease from Global Expansion to Local Retreat, 1840-1990, and Measles.
General works on immunization are classed in 614.47 Immunization, which has the note: “Class here vaccination.” Above that number in the hierarchy, at 614.4 Incidence of and public measures to prevent disease, is the see reference: “For incidence of and public measures to prevent specific diseases and kinds of diseases, see 614.5.” The see reference has hierarchical force; consequently, works on immunization for a specific disease are classed with the disease under 614.5 Incidence of and public measures to prevent specific diseases and kinds of diseases.