Gunnar Johansson (immunologist)

Stig Gunnar Olof Johansson (born 1938 in Mora, Sweden), professionally often abbreviated S. G. O. Johansson, is a Swedish immunologist.^[1] He is credited, along with Ishizaka's team,^[2] and Hans Bennich [sv],^[3] for the discovery of immunoglobulin E (IgE),^[4] a kind of antibody or immunoglobulin that mediates immunity to parasites and also has an essential role in type I hypersensitivity and allergic diseases. Their joint paper was published in April 1969.^[5]

Johansson received a PhD in 1968.^[1][6] Later in 1968, he finished his remaining courses in medical school and earned his medical degree.^[1][6] In 1969, he became a docent in immunology.^[6] In 1980, Johansson became a professor in clinical immunology at Karolinska Institute.^[6]