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.
Glad to Be Gay fight the disease"), and extended attacks on the tabloid press. From 1996, it also addressed what Robinson calls his 'late onset bisexuality'. The November 6, 1977, episode of Granada Television's "So It Goes" featured a live performance of the song by the Tom Robinson Band. In 1979, Tom Robinson performed at the "Secret Policeman's Ball", a benefit concert staged by the British section of Amnesty International to raise funds for its research and campaign work in the human rights arena. For this performance he reinstated a verse about Peter Wells not used since the original demo. Wells was a young