[3] Rabson joined the Public Health Service during the Korean War and studied virology at what it now the Centers for Disease Control and Prevention.
He joined the National Institutes of Health in 1955 as the only pathology resident at the newly opened NIH Clinical Center.
[4][3] After being hired as a faculty member a year later, he began his career of studying oncoviruses.
Rabson was married to Ruth Kirschstein, a fellow pathologist at the NIH.
Rabson died in Skillman, New Jersey, on July 4, 2018, of vascular disease.