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Astrid Elsa Fagraeus-Wallbom (30 May 1913 - 24 February 1997) was a Swedish Immunologist that was a professor at Karolinska Institute in Stockholm between 1961 and 1979, when she retired. She is know about demonstrating antibody production in plasma cells in her PhD thesis and was awarded the "The Jubilee prize" by the Swedish Society of Medicine in 1950.

Academic Career
Astrid Fagraeus through her doctoral thesis provided the first clear evidence that plasma cells produce immunoglobulins. In particular, she discovered that immunoglobulin G is produced in the plasma cells. She also investigated cell membrane antigens and contributed to the field of clinical immunology.

From 1962, she was chief of the Virus Department of National Bacteriological Laboratory at the Karolinska Institute in Stockholm. In 1965, she became a professor of Immunology at the Karolinska Institute.