On March 17, the Central Epidemic Command Center (CECC) announced that it will collect personal data and contact information of European travelers provided on Health Declaration cards, or the online system for entry by the travelers from March 3 to March 14 for retrospective screenings for coronavirus disease 2019 (COVID-19). The CECC has linked personal and contact information of European travelers to national health insurance (NHI) system in order to identify individuals who sought medical care for pneumonia or upper respiratory symptoms from March 3 to March 14. The CECC will send text messages to symptomatic persons to remind them to observe related testing measures. The CECC will also arrange for health officials to call all inbound travelers to learn about their health conditions and to remind them to put on face masks and seek medical attention immediately if symptoms develop.

The CECC urged individuals who arrived from Europe during the time period of March 3 to March 14 to follow a 14- day period of self-health management upon returning to Taiwan. Such individuals are advised to temporarily stop attending classes or temporarily work from home.