A follow-up survey conducted after an initial study or survey to gather additional information or check progress/outcomes.
この研究では、6か月後に参加者に対して追跡調査を行った。
In this study, a follow-up survey of participants was carried out six months later.
顧客満足度調査の結果を受けて、追加の追跡調査を実施する予定だ。
Based on the customer satisfaction survey results, we plan to conduct an additional follow-up survey.
追跡調査で回答者の意見の変化を確認できた。
The follow-up survey allowed us to confirm changes in respondents' opinions.
Contact tracing: investigating people who have been in contact with an infected person in order to control the spread of an infectious disease.
市の保健所が感染拡大を防ぐために追跡調査を始めた。
The city's health office began contact tracing to prevent further spread of the infection.
陽性者が出た場合、追跡調査で濃厚接触者を特定する必要がある。
If a positive case appears, contact tracing is necessary to identify close contacts.
追跡調査の結果、感染経路が判明した。
As a result of contact tracing, the route of infection was identified.