At the end of April in-hospital infections broke out in Taipei's Hoping Municipal Hospital and Jenchi Hospital. After some residences in the Huachang Public Housing Complex on Tali Street were quarantined, the Wanhua District became the center of the epidemic.
四月底，當台北和平、仁濟醫院相繼爆發 SARS 院內感染，大理街華昌國宅的部分住宅也被隔離後，萬華區成為台北市的重災區。