Maurice Hilleman

Economist.com Obituary (Subscription required.)

"Identifying the problem, collecting data, finding a solution: Mr Hilleman developed some 40 vaccines, among them for measles, hepatitis A and B, chickenpox, meningitis and pneumonia. He developed the one-shot vaccine that can prevent several diseases, such as MMR (measles, mumps and rubella). When in 1988 President Reagan presented him with the National Medal of Science, America's highest scientific honour, it was said that he had saved more lives than any other scientist in the 20th century. His peers said that he had done more for preventive medicine than anyone since Louis Pasteur.........

"Mr Hilleman's greatest contribution to a healthy world may have been his work on the safe mass production of vaccines that can be stored ready for use against the pandemics that since antiquity have regularly swept across continents, such as the 1918 flu outbreak that killed more than 20m people. In 1957, when flu swept through Hong Kong, Mr Hilleman identified the virus as a new form to which people had no natural immunity and passed on his findings to vaccine-makers. When the virus reached the United States a few months later 40m doses of vaccine were ready to limit its damage. Mr Hilleman established that the flu virus is constantly mutating, making it difficult to provide a reliable vaccine."