World Health Organization contain the last European outbreak in Yugoslavia in 1972. After over two decades of fighting smallpox, the WHO declared in 1979 that the disease had been eradicated – the first disease in history to be eliminated by human effort. Also in 1967, the WHO launched the Special Programme for Research and Training in Tropical Diseases and the World Health Assembly voted to enact a resolution on Disability Prevention and Rehabilitation, with a focus on community-driven care. In 1974, the Expanded Programme on Immunization and the control programme of onchocerciasis was started, an important partnership between the Food and Agriculture Organization
Quaternary extinction event not account for several major extinction events, notably Australia and North America. Dogs did not arrive in Australia until approximately 35,000 years after the first humans arrived and approximately 30,000 years after the megafaunal extinction was complete and as such can not be implicated. In contrast numerous species including wolves, mammoths, camelids and horses had emigrated continually between Asia and North America over the past 100,000 years. For the disease hypothesis to be applicable in the case of the Americas it would require that the population remain immunologically naive despite this constant transmission of genetic and pathogenic material. The Second-Order