日本語AIでPubMedを検索
潜伏期間中の輸入症例のSARS-CoV-2による環境汚染
Environmental contamination by SARS-CoV-2 of an imported case during incubation period.
PMID: 32640392 PMCID: PMC7326451. DOI: 10.1016/j.scitotenv.2020.140620.
抄録
中国青島への輸入症例の潜伏期間中のSARS-CoV-2の安定性を評価するために,検疫室の消毒前および消毒後の環境表面サンプルを採取した.症例確認後4時間以内に採取した第1バッチの環境表面サンプルのうち、23検体中11検体(47.8%)がSARS-CoV-2の陽性反応を示した。一方、第2バッチ(初回消毒後)では23検体中2検体(8.7%)のみがSARS-CoV-2の陽性反応を示しました。SARS-CoV-2の陽性は、寝室のサンプルが70%と大半を占め、次いで浴室のサンプルが50%、廊下のサンプルが33%であった。便器の内壁と下水道入口が最もウイルス負荷が高く汚染された場所であった.SARS-CoV-2は、後にCOVID-19と診断された症例の隔離室では、潜伏期間中に物体表面に広く分布していた。この非常に伝染性の高いウイルスの集団感染を最小限に抑えるためには、適切な消毒が重要である。
We collected environmental surface samples prior to and after disinfection of a quarantine room to evaluate the stability of SARS-CoV-2 during the incubation period of an imported case traveling to Qingdao, China. Overall, 11 of 23 (47.8%) of the first batch of environmental surface samples (within 4 h after case confirmation) were tested positive for SARS-CoV-2. Whereas only 2 of 23 (8.7%) of the second batch of environmental samples (after first disinfection) were tested positive for SARS-CoV-2. The majority of samples from the bedroom (70%) were positive for SARS-CoV-2, followed by 50% of samples from the bathroom and that of 33% from the corridor. The inner walls of toilet bowl and sewer inlet were the most contaminated sites with the highest viral loads. SARS-CoV-2 was widely distributed on object surfaces in a quarantine room of a later diagnosed COVID-19 case during the incubation period. Proper disinfection is crucial to minimize community transmission of this highly contagious virus.
Copyright © 2020. Published by Elsevier B.V.