Today (26 June), the Government announced a list of private medical laboratories for conducting recognised antibody tests.
Antibody tests will be used by the HK Government as part of administering compulsory quarantine duration requirements for inbound travellers who have been fully vaccinated and tested positive for antibodies.
Antibody tests must fulfil the following criteria:
(1) The test is IgG/total antibody test against SARS-CoV-2 spike protein/surrogate neutralising antibody test;
(2) The test is done by a recognised medical laboratory listed in Annex;
(3) The test is done within three months (based on specimen collection date);
(4) Laboratories in Group A (private medical laboratories with the test area of “virology–serology” accredited under the Hong Kong Laboratory Accreditation Scheme (HOKLAS)) may use any validated antibody testing platforms;
(5) Laboratories in Group B (accredited private medical laboratories recognised by the Hong Kong Government’s Laboratory Recognition Scheme without the “virology–serology” accreditation) may only use specified antibody testing platforms (currently include antibody testing platforms in use by the Hospital Authority); and
(6) The test result must be reported in the prescribed format in paper form or in the electronic form on the Government system to be rolled out separately.
The currently recognised antibody tests will be done by serology testing using blood drawn from veins. The decision to receive serology testing is completely voluntary and it is a self-paid arrangement.
Antibody tests will be introduced in two parts:
Phase 1, starting from 30 June, HongKongers may take a recognised antibody test before departing Hong Kong. The documentary proof of such will be recognised to administer the compulsory quarantine arrangements upon returning to Hong Kong.
Phase 2 starting later in July will offer self-paid antibody tests for inbound travellers at the airport – subject to the implementation progress and epidemic developments.
Updated Quarantine Requirements
As announced on 21 June the duration of compulsory quarantine for inbound travellers could be adjusted to seven days of quarantine at a designated quarantine hotel plus seven days of self-monitoring with multiple polymerase chain reaction (PCR) nucleic acid tests if they meet all the following three criteria:
(1) Fully vaccinated with a vaccination record (Note);
(2) Obtained a negative nucleic acid test result during “test-and-hold” arrangement upon arrival at Hong Kong; and
(3) Possess positive result proof of a recognised serology antibody test conducted within the past three months.
The purpose of checking antibodies is to show evidence of response to vaccination.
Note: Fully vaccinated means the suggested dosage has been administered in accordance with the relevant guidelines of a COVID-19 vaccination course at least 14 days prior to arrival in Hong Kong. The relevant vaccines administered should be those included on the List of COVID-19 Vaccines Recognised for Specified Purposes (www.coronavirus.gov.hk/pdf/list_of_recognised_covid19_vaccines.pdf). Travellers who have recovered from a previous COVID-19 infection will be required to receive one dose of a COVID-19 vaccine to be considered fully vaccinated.
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