World Health Organization Children's Fund (UNICEF), and smaller organizations. , it has been working to immunize young children and prevent the re-emergence of cases in countries declared "polio-free". In 2017, a study was conducted where why Polio Vaccines may not be enough to eradicate the Virus & conduct new technology. Polio is now on the verge of extinction, thanks to a Global Vaccination Drive. the World Health Organization (WHO) stated the eradication programme has saved millions from deadly disease. Another of the thirteen WHO priority areas is aimed at the prevention and reduction of "disease, disability and premature deaths from chronic noncommunicable diseases,
Smallpox vaccine his daughter, formed from the needle shaped to form an "O". This represented "Target Zero", the objective of the campaign. Smallpox was eradicated by a massive international search for outbreaks, backed up with a vaccination program, starting in 1967. It was organised and co-ordinated by a World Health Organization (WHO) unit, set up and headed by Donald Henderson. The last case in the Americas occurred in 1971 (Brazil), south-east Asia (Indonesia) in 1972, and on the Indian subcontinent in 1975 (Bangladesh). After two years of intensive searches, what proved to be the last endemic case anywhere in the world occurred