(To watch the full press briefing with sign language interpretation, click here.)

The Centre for Health Protection today announced it is investigating an additional 107 COVID-19 cases, of which 102 are locally transmitted.

At a press briefing this afternoon, the centre's Communicable Disease Branch Head Dr Chuang Shuk-kwan said the community testing centres detected 55 of the new cases.

She noted that 28 of those cases were spotted at the Henry G Leong Yaumatei Community Centre or mobile specimen collection stations in the district.

"According to the information provided by the Home Affairs Department, I understand that in the two days between January 16 and 17, there are a total of 7,100 people who went to various venues in Yau Ma Tei for compulsory or voluntary testing."

Regarding the linked cases, Dr Chuang stated that two are from the Central Kowloon Route - Central Tunnel and the Tseung Kwan O - Lam Tin Tunnel construction site clusters. The two patients are the close contacts of earlier confirmed cases.

She also explained how the construction site clusters are related to a community outbreak.

"The outbreak in Yau Tsim Mong District started off with some cases related to the construction sites of the Central Kowloon Route - Central Tunnel as well as the Tseung Kwan O - Lam Tin Tunnel. The patients usually live in quite a crowded area, with a close-knit community.

"They live in Yau Tsim Mong District and there may be a lot of subdivided flats. So they may spread the infection through environmental contamination and also person-to-person interaction to their families and friends in the street or in the park.

"And they may have some social gatherings such as smoking and drinking during the evening and also other activities - they like to visit each other and they like to sleep over at each other's homes."

Meanwhile, the centre reported that eight COVID-19 cases were recently found at Hiu Fung House of Fung Wah Estate in Chai Wan involving units 13 at three different floors.

Further to the compulsory testing notice issued earlier, the centre conducted an inspection of Hiu Fung House with relevant government departments this afternoon to investigate and examine if environmental factors were involved in the infections.

As the patients live on 12/F or below, the Department of Health will issue quarantine orders to all asymptomatic residents of units 13 between 1/F and 12/F and transfer them to quarantine centres.

Those who are symptomatic will be sent to hospital for treatment, while all asymptomatic residents of units 13 between 13/F and 34/F have to undergo COVID-19 nucleic acid tests again on January 21 and 28.

Additionally, the Government issued a compulsory testing notice which requires those who had been present at seven specified premises in Yau Tsim Mong during the specified period to undergo a virus test.

For information and health advice on COVID-19, visit the Government's dedicated webpage.