In 1933–1944, he worked at the All-union Institute of Experimental Medicine in Leningrad and simultaneously at the Tajik branch of the Academy of Sciences of the Soviet Union (1937–1951).
Pavlovsky held the post of the director of the Zoology Institute of the Academy of Sciences of the Soviet Union in 1942–1962.
Under Pavlovsky's direction, they organized numerous complex expeditions to the Central Asia, Transcaucasus, Crimea, Russian Far East and other regions of the Soviet Union to study endemic parasitic and transmissible diseases (tick-borne relapsing fever, tick-borne encephalitis, Pappataci fever, leishmaniasis etc.).
This concept laid the foundation for the elaboration of a number of preventive measures and promoted the development of the environmental trend in parasitology (together with the works of parasitologist Valentin Dogel).
This article includes content derived from the Great Soviet Encyclopedia, 1969–1978, which is partially in the public domain.