Sir Christopher Andrewes (1896-1988), British virologist. Between 1930-33, whilst working at the National Institute for Medical Research (NIMR), London, UK, Andrewes and two other men, Patrick Laidlaw and Wilson Smith, researched and identified for the first time the human influenza virus, type A. They inoculated ferrets with washings from the throat of a human flu victim. Several days later the animals started sneezing and were feverish. A ferret eventually passed the virus back to one of the researchers, completing the circle. Andrewes went on to found the World Health Organisation's (WHO) World Influenza Centre based at the NIMR. Photographed in 1933.