Transmission Potential of SARS-CoV-2 in Viral Shedding Observed at the University of Nebraska Medical Center
By
Joshua L Santarpia,
Danielle N Rivera,
Vicki Herrera,
M. Jane Morwitzer,
Hannah Creager,
George W. Santarpia,
Kevin K Crown,
David Brett-Major,
Elizabeth Schnaubelt,
M. Jana Broadhurst,
James V. Lawler,
St Patrick Reid,
John J. Lowe
Posted 26 Mar 2020
medRxiv DOI: 10.1101/2020.03.23.20039446
Lack of evidence on SARS-CoV-2 transmission dynamics has led to shifting isolation guidelines between airborne and droplet isolation precautions. During the initial isolation of 13 individuals confirmed positive with COVID-19 infection, air and surface samples were collected in eleven isolation rooms to examine viral shedding from isolated individuals. While all individuals were confirmed positive for SARS-CoV-2, symptoms and viral shedding to the environment varied considerably. Many commonly used items, toilet facilities, and air samples had evidence of viral contamination, indicating that SARS-CoV-2 is shed to the environment as expired particles, during toileting, and through contact with fomites. Disease spread through both direct (droplet and person-to-person) as well as indirect contact (contaminated objects and airborne transmission) are indicated, supporting the use of airborne isolation precautions. One Sentence SummarySARS-CoV-2 is shed during respiration, toileting, and fomite contact, indicating that infection may occur in both direct and indirect contact.
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