NSW Health investigating identical viral sequence of cases in Radisson Blu hotel quarantine15th June 2021
NSW Health is investigating the source of a COVID-19 case in the Radisson Blu quarantine hotel in Sydney which has an identical viral sequence to two cases who were staying in an adjacent room.
The department on Tuesday night said it was “currently unclear how and where transmission occurred” between a couple and another traveller all staying on the fourth floor of the O’Connell Street hotel.
All three cases have identical viral sequences of the Alpha coronavirus variant, B.1.1.7, arrived on the same flight from Doha to Sydney on June 1 and stayed in adjacent rooms of the quarantine hotel.
They have been transferred to the Special Health Accommodation where they will remain following their positive tests, NSW Health said.
The asymptomatic couple tested positive to COVID-19 on day two at the Radisson Blu on June 3.
The other traveller, considered the secondary case, returned a negative day two test on June 3 “before subsequently developing symptoms” and testing positive for COVID-19 on June 5.
“Early possibilities as to where transmission may have occurred from the couple to the secondary case include on the flight, on transport from the airport to the hotel, in the lobby of the hotel, or while in quarantine,” NSW Health said. “Currently, there is no evidence of further transmission.”
The department said “out of an abundance of caution”, all returned travellers who were on the fourth floor of the hotel between June 1 and June 5 and were subsequently discharged into the community are being contacted, asked to get tested and isolate at home pending further advice.