"That's probably less than 10 per cent of transmission events, so it's a much rarer route," Dr Short said.
Kirsty Short, a virologist from UQ, agreed with her colleague regarding the surface-transmission theory. "It's pretty hard to envisage how it could have happened, but I guess it goes to show how infectious this thing is," Dr Labzin said. However, she said this was unlikely to have been what happened, given the hotel worker would have been wearing fresh personal protective equipment (PPE). "We know that the virus can certainly survive for some time on surfaces," Dr Labzin said Latest case information from Queensland Health. University of Queensland (UQ) immunologist Larisa Labzin said this was a possible scenario.
One theory is the worker had viral particles on her after interacting with the man and she passed them to the flight attendant. Health authorities think the worker somehow passed the infection from the first person to the second, despite having testing negative for COVID-19 themselves. The worker later went to another level of the hotel and took a nasal swab from a flight attendant as part of routine testing,Īfter leaving hotel quarantine, the flight attendant tested positive for the same genomic strain as the man from Mongolia. Health authorities believe the hotel quarantine staff member, who was fully vaccinated, is the link between the two travellers.įirst, the worker escorted a man - who had returned from Mongolia and was sick with COVID-19 - to a waiting ambulance. So, how can you pass COVID-19 from one person to another without testing positive yourself? How did this happen? The theory is the staff member inadvertently passed a variant of the virus from one traveller to another who was staying on a different floor of the hotel. A woman in Queensland is suspected of catching COVID-19 from a fully vaccinated hotel quarantine worker who tested negative for the virus.
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