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- W3022772163 abstract "Summary Background A COVID-19 outbreak occurred in a cruise ship with 3711 passengers and crew in 2020. This study is to test the hypothesis that environmental surfaces played important roles in transmission for SARS-CoV-2 during this outbreak. Methods We sampled environmental surfaces including air from common areas in the cruise ship and cabins in which confirmed COVID-19 cases and non-cases had stayed after they left the cabins. We tested the samples for SARS-CoV-2 by rt-PCR and conducted viral isolation. Findings Of 601 samples tested, SARS-CoV-2 RNA was detected from 58 samples (10%) from case-cabins from which they left 1-17 days before sampling, but not from non-case-cabins. Except for one sample from an air hood in a corridor, SARS-CoV-2 RNA was not detected from samples in common areas. SARS-CoV-2 RNA was not detected from all 14 air samples. RNA was most often detected on the floor around toilet in the bathroom (39%, 13/33, cycle quantification (Cq): 26.21-37.62) and bed pillow (34%, 11/32, Cq: 34.61-38.99). There was no difference in the detection proportion between cabins for symptomatic (15%, 28/189, Cq: 29.79-38.86) and asymptomatic cases (21%, 28/131, Cq: 26.21-38.99). No SARS-CoV-2 virus was isolated from any of the samples. Interpretation The environment around the COVID-19 cases was extensively contaminated from SARS-CoV-2 during COVID-19 outbreak in the cruise ship. Transmission risk of SARS-CoV-2 from symptomatic and asymptomatic patients seems to be similar and the environmental surface could involve viral transmission through direct contact." @default.
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- W3022772163 date "2020-05-08" @default.
- W3022772163 modified "2023-09-23" @default.
- W3022772163 title "Environmental sampling for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) during a coronavirus disease (COVID-19) outbreak aboard a commercial cruise ship" @default.
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- W3022772163 doi "https://doi.org/10.1101/2020.05.02.20088567" @default.
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