COVID: Travelers infected one another across hallway,research shows
Closed-circuit camera footage, genetic testing and careful contact tracing show that the only conceivable way the virus could have passed from one room to another was in air that leaked out when both doors were briefly opened,It’s a demonstration of how the virus can spread — and of how well vaccines can work. The one person who escaped infection was fully vaccinated and never tested positive, despite having stayed in the same room as four other infected people for weeks on end.
Three more people in the group of five became infected, but genetic testing indicated that their infected companion was not the source. It was the traveler from the Philippines — their virus had the same genetic fingerprints. The New Zealand authorities had tried to prevent this with extractor fans and air cleaners, but the system may have failed when the doors opened. “No ventilation systems connected separate rooms. Rooms had external windows that could be freely opened by occupants,” the researchers noted.
“Person F had received two doses of the Pfizer-BioNTech COVID-19 vaccine, but no other members of the travel group had been vaccinated.” “On arrival at the Hong Kong airport, both case-patients stayed in the same quarantine hotel and had rooms across the corridor from each other on the same floor.”“No items were shared between rooms, and other persons did not enter either room,” the team wrote.
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