Pandemic smallpox was responsible for 300–500 million deaths. As recently as the early 1950s, an estimated 50 million cases of smallpox occurred in the world each year. After successful vaccination campaigns throughout the 19th and 20th centuries, the WHO certified the eradication of smallpox in December 1979. To this day, smallpox is the only human infectious disease to have been completely eradicated, and one of two infectious viruses ever to be eradicated. Historically, measles was prevalent throughout the world, as it is highly contagious. According to the U.S. National Immunization Program, 90% of people were infected with measles by age 15.
...Something to Be single "Streetcorner Symphony". The album was released in the DualDisc format, the first major album to be released that way. The album itself is certified Platinum by the RIAA in the U.S. and consists of several types of sounds, including dance, pop, Latin, rock, and country, although it can be generally classified as closer to pop than to the rock music of Matchbox Twenty's third studio album, "More Than You Think You Are". The album was supported by his 2005–06, Something to Be Tour. The album cover, as well as the title, bears some resemblance to "...But Seriously", a 1989