Is it still a saliva test on arrival at the airport, or a nasal swab test?
The 10 day test (or is is 12 day?) should be a saliva one.
I'll be doing 14 days home quarantine as coming from Taiwan. I don't think I have to do a 19 or 20 day test.
https://www.coronavirus.gov.hk/eng/i...ravel-faq.html