The Centre for Health Protection today said it is investigating six additional imported COVID-19 cases involving patients who arrived from Ukraine, Pakistan, Indonesia and Russia.

One of the patients is a foreign domestic helper who arrived on September 4 from Indonesia on flight CX2780. The specimen collected upon arrival at the airport as well as the five tests during her compulsory quarantine period at a designated quarantine facility were negative for COVID-19.

Having completed compulsory quarantine on September 25, she returned to the residence at Heng Fa Chuen provided by her employer. Subsequent to an indeterminate virus test result on October 3, she was admitted to hospital where the sample taken on October 4 tested positive. However, she tested negative again on October 5.

The patient has been asymptomatic. She received two doses of the Sinovac vaccine on July 19 and August 16 in Indonesia. Also, her antibody test result for COVID-19 was positive.

After examining the epidemiological, clinical and laboratory findings, this case is considered compatible with a re-positive case, the centre explained.

Preliminary investigations revealed that the patient visited Victoria Park on October 1 and 3. As a prudent measure, the places where she resided and visited in Hong Kong during the incubation period have been included in a compulsory testing notice.

Meanwhile, a school is covered in another compulsory testing notice due to an outbreak of upper respiratory tract infection or influenza-like illness. Those who have completed a COVID-19 vaccination course can be exempted.

The latest opening dates and operating hours of mobile specimen collection stations in various districts are also announced.

A total of 71 cases were reported in Hong Kong in the past 14 days, all of which are imported.

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