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Detection of Air and Surface Contamination by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) in Hospital Rooms of Infected Patients
Po Ying Chia.
Kristen K Coleman.
Yian Kim Tan.
Sean Wei Xiang Ong.
Marcus Gum.
Sok Kiang Lau.
Stephanie Sutjipto.
Pei Hua Lee.
Than The Son.
Barnaby E Young.
Donald K Milton.
Gregory C Gray.
Stephan Schuster.
Timothy Barkham.
Partha Prathim De.
Shawn Vasoo.
Monica Chan.
Brenda Sze Peng Ang.
Boon Huan Tan.
Yee Sin Leo.
Oon-Tek Ng.
Michelle Su Yen Wong.
Kalisvar Marimuthu.
Acceso Abierto
Atribución-NoComercial-SinDerivadas
10.1101/2020.03.29.20046557
Understanding the particle size distribution in the air and patterns of environmental contamination of SARS-CoV-2 is essential for infection prevention policies. We aimed to detect SARS-CoV-2 surface and air contamination and study associated patient-level factors. 245 surface samples were collected from 30 airborne infection isolation rooms of COVID-19 patients, and air sampling was conducted in 3 rooms. Air sampling detected SARS-CoV-2 PCR-positive particles of sizes >4 m and 1-4 m in two rooms, which warrants further study of the airborne transmission potential of SARS-CoV-2. 56.7% of rooms had at least one environmental surface contaminated. High touch surface contamination was shown in ten (66.7%) out of 15 patients in the first week of illness, and three (20%) beyond the first week of illness (p = 0.01).
www.medrxiv.org
2020
Artículo
https://www.medrxiv.org/content/10.1101/2020.03.29.20046557v2.full.pdf
Inglés
VIRUS RESPIRATORIOS
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