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Malaria, the search for a cure. It has been 101 years since Ronald Ross discovered the malaria parasite was spread by the Anopheles mosquito. There were around 300 to 500 million cases of malaria a year and around 1.5 million deaths in the last year. Yet in the 1950s and early 1960s it was believed the disease was close to being eradicated. A panel looks at how close a cure once seemed and hopes for a future vaccine. This is a programme from the ÃÛÑ¿´«Ã½ World Service Archive and was originally broadcast in 1998.