Journal
JOURNAL OF HOSPITAL INFECTION
Volume 106, Issue 4, Pages 678-697Publisher
W B SAUNDERS CO LTD
DOI: 10.1016/j.jhin.2020.09.022
Keywords
SARS-CoV-2; transmission; sources; epidemiology; prevention
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During the current SARS-CoV-2 pandemic new studies are emerging daily providing novel information about sources, transmission risks and possible prevention measures. In this review, we aimed to comprehensively summarize the current evidence on possible sources for SARS-CoV-2, including evaluation of transmission risks and effectiveness of applied prevention measures. Next to symptomatic patients, asymptomatic or pre-symptomatic carriers are a possible source with respiratory secretions as the most likely cause for viral transmission. Air and inanimate surfaces may be sources; however, viral RNA has been inconsistently detected. Similarly, even though SARS-CoV-2 RNA has been detected on or in personal protective equipment (PPE), blood, urine, eyes, the gastrointestinal tract and pets, these sources are currently thought to play a negligible role for transmission. Finally, various prevention measures such as handwashing, hand disinfection, face masks, gloves, surface disinfection or physical distancing for the healthcare setting and in public are analysed for their expected protective effect. (C) 2020 The Healthcare Infection Society. Published by Elsevier Ltd. All rights reserved.
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