In 1947-1948 he participated in the first post-war scientific forums in Preventive Medicine (XII All-Union Congress of the Ukrainian and V hygienists, epidemiologists, microbiologists, infectious disease).

In 1948, the Republican anti-epidemic commission was appointed commissioner for conducting control activities Railway district of Kiev.

In his role as professor, which in those years led a member of the Academy of Medical Sciences Hayk Khachaturovich Shahbazian, Trachtenberg served until 1972 and during that time has published three monographs, one of which is devoted to mercury poisoning, the second - Toxicology of polymers, the third - physiology of mental labor.

In 1956, Trachtenberg was awarded the academic title of associate professor and in 1961 he was elected a chairman of the union of the Kiev Medical Institute.

He also became a member of the Industrial Toxicology Section of the Problem Commission "Scientific basis of health and occupational diseases," Academy of Medical Sciences.