On Feb. 11, Tainan City announced the footprints of a confirmed case from Kaohsiung City. Case #19528 is a teenage female with a completed primary series of vaccination. She started to experience a sore throat on Feb. 3. She underwent specimen collection on Feb. 9 after learning her relatives/friends were confirmed; she was then confirmed as a COVID-19 case on the next day. As the case had attended a winter camp in a senior school in Tainan City, all of her possible close contacts had been identified to undertake home isolation. All the places she had been to are all cleaned and disinfected. Her footprints are listed in the attachment. The city government urges passengers who had taken the same train as Case #19528 did to reach the Yongkang District Health Station to acquire a COVID-19 home test kit with the ID card.