Passengers stranded on the Diamond Princess cruise ship in Japan since Feb 3 are being ferried to Chun Yeung Estate in Fo Tan to be quarantined after landing in Hong Kong in the morning of Feb 20, 2020. (EDMOND TANG / CHINA DAILY)

A bus carrying passengers who landed in Hong Kong in the morning of Feb 20, 2020, after being stranded on the Diamond Princess cruise ship in Japan, leaves the airport for Chun Yeung Estate in Fo Tan, where the passengers will be quarantined for 14 days. (EDMOND TANG / CHINA DAILY)

Staff members in protective gear wait for Hong Kong passengers who were stranded on the Diamond Princess cruise ship in Japan to arrive at Chun Yeung Estate in Fo Tan to be quarantined, Feb 20, 2020. (EDMOND TANG / CHINA DAILY)

Hong Kong passengers who were on the Diamond Princess cruise ship in Japan arrive at Chun Yeung Estate in Fo Tan to be quarantined after landing in Hong Kong in the morning of Feb 20, 2020. (EDMOND TANG / CHINA DAILY)

Hong Kong passengers who were on the Diamond Princess cruise ship in Japan arrive at Chun Yeung Estate in Fo Tan to be quarantined after landing in Hong Kong in the morning of Feb 20, 2020. (EDMOND TANG / CHINA DAILY)

Staff members offload the luggage of those passengers who will be quarantined for 14 days at Chun Yeung Estate in Fo Tan following their arrival in Hong Kong in the morning of Feb 20, 2020. (EDMOND TANG / CHINA DAILY)