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Frequent Occurrence of SARS-CoV-2 Transmission among Non-close Contacts Exposed to COVID-19 Patients

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Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) transmission among non-close contacts is not infrequent. We evaluated the proportion and circumstances of individuals to whom SARS-CoV-2 was transmitted without close contact with the index patient in a nosocomial outbreak in a tertiary care hospital in Korea. From March 2020 to March 2021, there were 36 secondary cases from 14 SARS-CoV-2 infected individuals. Of the 36 secondary cases, 26 (72%) had been classified as close contact and the remaining 10 (28%) were classified as non-close contact. Of the 10 non-close contact, 4 had short conversations with both individuals masked, 4 shared a space without any conversation with both masked, and the remaining 2 entered the space after the index had left. At least one quarter of SARS-CoV-2 transmissions occurred among non-close contacts. The definition of close contact for SARS-CoV-2 exposure based on the mode of droplet transmission should be revised to reflect the airborne nature of SARS-CoV-2 transmission.
Author(s)
김미나김성한김윤진김은옥김은주남궁송이박만성배성만윤미나이선미이정민임영주정지원
Issued Date
2021
Type
Article
Keyword
SARS-CoV-2COVID-19Contact TracingClose Contact
DOI
10.3346/jkms.2021.36.e233
URI
https://oak.ulsan.ac.kr/handle/2021.oak/8073
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_nrf_kci_oai_kci_go_kr_ARTI_9851042&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Frequent%20Occurrence%20of%20SARS-CoV-2%20Transmission%20among%20Non-close%20Contacts%20Exposed%20to%20COVID-19%20Patients&offset=0&pcAvailability=true
Publisher
JOURNAL OF KOREAN MEDICAL SCIENCE
Location
대한민국
Language
한국어
ISSN
1011-8934
Citation Volume
36
Citation Number
33
Citation Start Page
0
Citation End Page
0
Appears in Collections:
Medicine > Medicine
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