silent transmission chain 隱形傳播鏈

silent transmission chain
繁：隱形傳播鏈
简：隐形传播链

政府專家顧問、港大醫學院院長梁卓偉表示，除望月樓群組外，香港已出現與望月樓無關、並已有第3代傳播的個案，相信社區存在至少兩條額外傳播鏈，預計已潛在可能5至10條隱形傳播鏈，形容是非常大的警號和非常緊急的時間。

梁卓偉料潛在5至10條隱形傳播鏈　倡收緊社交措施（2022年1月5日）。香港電台網站，取自 https://news.rthk.hk/rthk/ch/component/k2/1627402-20220105.htm

Hong Kong has reported its first untraceable local coronavirus case in nearly three months, with officials warning it is likely to be an Omicron infection and may indicate silent transmission chains in the community.

Coronavirus: Hong Kong reports first untraceable local case in nearly 3 months, ‘likely to be an Omicron infection’ and may indicate silent transmission chains in community. (2022, Jan 4). South China Morning Post. Retrieved from https://www.scmp.com/news/hong-kong/health-environment/article/3162088/coronavirus-hong-kong-reports-first-untraceable