S’pore quarantines SIA passenger from Johannesburg after two onward travellers test Omicron positive: Johannesburg, Gauteng, South Africa in the news: S’pore quarantines SIA passenger from Johannesburg after two onward travellers test Omicron positive: Singapore, Nov 30: Singapore has quarantined one traveller as a close contact of two passengers on Singapore Airlines’ (SIA) … [Read more...] about S’pore quarantines SIA passenger from Johannesburg after two onward travellers test Omicron positive