SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
Three vaccine experts at a conference. At left is Thomas Weller (1915-2008), American winner of the 1954 Nobel Prize in Physiology or Medicine for his work on polio; at centre is Albert Sabin (1906-93), American developer of the first vaccine against polio; at right is Viktor Zhdanov (1914-87), Russian-Soviet researcher who was instrumental in eradicating smallpox globally. Photographed at a meeting at Washington DC, USA, in 1966.
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