Bernard Herman Vos studied medicine in Zurich and Leiden. In Leiden, he sat for his medical finals on 6 June 1896. He obtained his doctoral degree on 21 January 1897 in Leiden with the thesis 'Insufficiency of the aorta valves'.
He practised as a family doctor in Hallum. In 1905, he was appointed senior medical officer of the Hellendoorn convalescent home. He wrote a few studies on tuberculosis.
At the beginning of the Second World War, Bernard Herman Vos lived as a physician on leave at 350 Laan van Poot in The Hague. He died in his hiding place in Haarlem. His wife and children survived the war.
J.H. Coppenhagen, Anafiem Gedoe‘iem. Overleden joodse artsen uit Nederland 1940-1945 (Rotterdam 2000) 143
Biography