The Centre for Health Protection today said it is investigating seven additional COVID-19 cases, of which six are imported and one is epidemiologically linked with a local case.

The epidemiologically linked case involves a 53-year-old woman. She is the mother of the case announced on June 5 and is a housewife.

The patient was sent to a quarantine centre on June 4 and has been asymptomatic.

The test result by the Department of Health’s Public Health Laboratory Services Branch revealed that the patient carried the N501Y mutant strain but did not carry the L452R or E484K mutant gene.

The centre's investigation revealed that the patient has not received COVID-19 vaccination. The Government yesterday required those who had been present at places the patient visited to get tested.

Additionally, the centre is investigating a preliminary positive case involving a 20-year-old woman who is the patient's daughter and sister of the case reported on June 5.

She also resides at Shing Yu House, Tin Shing Court in Tin Shui Wai.

The patient was sent to a quarantine centre on June 4. She developed symptoms including cough, runny nose and diarrhoea on June 4 and was admitted to hospital on June 5.

She has also not received COVID-19 vaccination.

The patient is a student who attended online classes at home. She visited some venues in Tsuen Wan, Tsim Sha Tsui and Sham Shui Po on May 23 and 29.

As the patient has not used the LeaveHomeSafe mobile app, the centre will broadcast messages to visitors of the venues she visited.

The places she stayed in during the incubation period are included in the compulsory testing notice.

The centre also reminded people in relation to Shing Yu House, Tin Shing Court to undergo mandatory testing in accordance with the compulsory testing notice.

The Government will set up a mobile specimen collection station at the lay-by opposite to the bus stop at Mei Wan Street in Tsuen Wan on June 7 to provide free testing service for people subject to mandatory testing.

A total of 21 cases were reported in Hong Kong in the past 14 days, including one local case with an unknown source.

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