noun, noun or participle which takes 'suru', transitive verb
follow-up survey; tracing survey
General term for a survey or investigation that tracks subjects over time, such as in market research, social studies, or after an event.
卒業生を対象に追跡調査を行った。
We conducted a follow-up survey targeting graduates.
この研究では、患
In this study, we are tracking the recovery status of patients.
noun, noun or participle which takes 'suru', transitive verb
contact tracing (of an infectious disease)
Specifically used in public health contexts for identifying and monitoring people who have been in contact with an infected person.
保健所は感染者と接触した人を追跡調査している。
The public health center is conducting contact tracing of people who had contact with the infected person.