This paper examines the learning process of a Korean virologist Ho Wang Lee. He is a medical scientist, who discovered the Hantaan virus, known to cause epidemic hemorrhagic fever, for the first time in the world. He achieved international research results amid poor research conditions in Korea. How did he manage to achieve this? To answer this question, this paper will present his learning experience as a budding medical researcher. During the course of his studies, he experienced several shifts in learning space, which had had some influence on his research activities. First, he was able to absorb advanced research skills by studying abroad. He studied at the College of Medicine, Seoul National University, where he was responsible for making sterile culture medium. He then went on to the University of Minnesota, where he was exposed to a new field of virology. Second, Lee was able to construct a network of international researchers through his movement abroad. Scherer, who was his academic advisor at the University of Minnesota, continued to stay in touch with Lee after he graduated, helping him with various aspects of his research activities back home. Third, he had an opportunity to explore cutting-edge research topics with colleagues in developed countries. Lee's contact with peers in the United States allowed him to utilize a new experimental material, the porcine kidney cell, as a culture medium of the Japanese Encephalitis virus.