On February 19, 2020, the Central Epidemic Command Center (CECC) announced the 24th case of coronavirus disease 2019 (COVID-19) in Taiwan. The case is a female in her 60s who resides in northern Taiwan, and didn’t travel abroad in the past two years. She developed a fever and cough on January 22, and visited clinics for medical attention four times from January 22 to 29. She went to an emergency room on the evening of January 29 for her symptoms worsened and she also developed shortness of breath. She was later diagnosed as having pneumonia. She was hospitalized January 30. As her condition deteriorated, she was transferred to the intensive care unit on February 10. In order to follow the CECC’s measure that cases of severe complicated influenza who tested negative for influenza are required to test for COVID-19, she was transferred to a negative pressure isolation ward on February 17. The patient tested positive for COVID-19 on February 19 and is receiving medical treatment in isolation.