János Bodnár as professor and chair of the Institute of Medical Chemistry taught not only the first year medical students but, as a subject lecturer– owing to the lack of faculty of natural sciences – at the faculty of humanities he also took part in natural sciences teacher training of the teacher candidates. In addition, he also o
...ffered courses to those students who intended to obtain a doctoral degree.
In the academic year of 1943–44 he served as rector of the University of Debrecen, which was hard work because of the wartime climate and existence. In the following academic year, 1944 – 1945, he again took part in the management of the university as deputy rector since the newly appointed rector, János Hankiss got stuck in Budapest because of the war events. He concentrated on the temporary reconstruction of the war damages and he endeavoured to ensure the availability of the facilities of education.