Education
University of Göttingen.
University of Göttingen.
He is also known for the Frei Test, which was developed in 1925 for the detection of lymphogranuloma venereum (LGV). His father, Emil Frei, was a mining firm director, from Neustadt, Upper Silesia. His mother was Frederika Ring, who came from Austria.
Wilhelm had two sisters, Gerta Frei (1887 — presumably killed by Nazis) and Josephina Frei (1888).
Wilhelm studied medicine in Freiburg, Germany, and went on to get his doctorate in Göttingen in 1913.