The Centre for Health Protection today said it is investigating 12 additional COVID-19 cases, one of which is locally transmitted and epidemiologically linked with a local case.

The new local case involves an 84-year-old man who lives in Block 2, Oi Fai House, Yau Oi Estate, Tuen Mun. His unit is adjacent to a previously confirmed case on the same floor.

The centre explained that it is proactively following up to investigate whether the cases are related.

Given environmental contamination on the same floor of the building cannot be excluded, the Department of Health will issue quarantine orders to all remaining asymptomatic residents on 8/F, Block 2, Oi Fai House in Yau Oi Estate and transfer them to quarantine centres, while symptomatic residents will be sent to the hospital for treatment.

Separately, the centre is continuing its investigation of a confirmed case announced yesterday. The 31-year-old woman is a staff member working at a clinic in the Centrium, 60 Wyndham Street, Central.

Her close contacts, including clinic staff and patients, have been arranged to undergo quarantine. People who had been at the clinic are urged to take a COVID-19 nucleic acid test.

In view of the preliminary positive cases recorded today, Sin Ching Building in Tsuen Wan and Mei Ting House of Mei Tin Estate in Tai Wai are included in the compulsory testing notice.

In addition, since there were outbreaks of upper respiratory tract infection in two kindergarten and nurseries, and a nursery school. The three schools are also covered in the compulsory testing notice.

The Government will set up a mobile specimen collection station at Mei Tin Community Hall, Tai Wai tomorrow.

Among the imported cases, seven arrived from India, three from the Philippines and one from the US.

A total of 175 cases have been recorded in the past 14 days, including 37 local ones, of which 12 have unknown infection sources.

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