untraceable case 源頭不明個案

untraceable case
繁：源頭不明個案
简：源头不明个案

新增源頭不明個案包括1名無業人士、1名於牛頭角創業街從事電話銷售工作的人士；1人於荃灣一間食肆任職廚房。

增12宗新型肺炎確診　11宗本地個案中3宗源頭不明（2021年2月23日）。香港電台，取自 https://news.rthk.hk/rthk/ch/component/k2/1577016-20210223.htm

Chuang also added that apart from the three buildings where the untraceable cases live, Tower 1C of Upper East in Hung Hom has also been included in the compulsory testing notice today after Covid cases were detected.

HK reports 12 Covid cases with three infections untraceable. (2021, February 24). The Standard. Retrieved from https://www.thestandard.com.hk/breaking-news/section/4/166074/HK-reports-12-Covid-cases-with-three-infections-untraceable