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Exploring the Bridge Cases’ Role in the Transmission of the SARS-CoV-2 Delta Variant — Ruili City, Yunnan Province, China, July–September 2021

WHAT IS ALREADY KNOWN ABOUT THIS TOPIC? The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Delta variant has proved to have increased transmissibility, and mutations that can cause partial immune escape, which makes its transmission more insidious. WHAT IS ADDED BY THIS REPORT? This st...

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Autores principales: Yan, Xiangyu, Chang, Litao, Wang, Zekun, Hao, Linhui, Jia, Zhongwei, Zhang, Bo, Shui, Tiejun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Editorial Office of CCDCW, Chinese Center for Disease Control and Prevention 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8671837/
https://www.ncbi.nlm.nih.gov/pubmed/34934518
http://dx.doi.org/10.46234/ccdcw2021.239
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author Yan, Xiangyu
Chang, Litao
Wang, Zekun
Hao, Linhui
Jia, Zhongwei
Zhang, Bo
Shui, Tiejun
author_facet Yan, Xiangyu
Chang, Litao
Wang, Zekun
Hao, Linhui
Jia, Zhongwei
Zhang, Bo
Shui, Tiejun
author_sort Yan, Xiangyu
collection PubMed
description WHAT IS ALREADY KNOWN ABOUT THIS TOPIC? The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Delta variant has proved to have increased transmissibility, and mutations that can cause partial immune escape, which makes its transmission more insidious. WHAT IS ADDED BY THIS REPORT? This study showed that probable cases who had negative results in nucleic acid testing but had positive IgM test result and/or IgG test value of over 20 S/CO in antibodies testing, might serve as bridges in the Delta variant’s transmission chain. WHAT ARE THE IMPLICATIONS FOR PUBLIC HEALTH PRACTICE? In border inspection and quarantine, tests for SARS-CoV-2 IgM and IgG antibodies should be strengthened alongside nucleic acid tests to prevent probable cases with transmission potential from crossing the land border into China. In contact tracing investigations, the bridging role of probable cases should be considered to reconstruct the transmission chain.
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spelling pubmed-86718372021-12-20 Exploring the Bridge Cases’ Role in the Transmission of the SARS-CoV-2 Delta Variant — Ruili City, Yunnan Province, China, July–September 2021 Yan, Xiangyu Chang, Litao Wang, Zekun Hao, Linhui Jia, Zhongwei Zhang, Bo Shui, Tiejun China CDC Wkly Outbreak Reports WHAT IS ALREADY KNOWN ABOUT THIS TOPIC? The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Delta variant has proved to have increased transmissibility, and mutations that can cause partial immune escape, which makes its transmission more insidious. WHAT IS ADDED BY THIS REPORT? This study showed that probable cases who had negative results in nucleic acid testing but had positive IgM test result and/or IgG test value of over 20 S/CO in antibodies testing, might serve as bridges in the Delta variant’s transmission chain. WHAT ARE THE IMPLICATIONS FOR PUBLIC HEALTH PRACTICE? In border inspection and quarantine, tests for SARS-CoV-2 IgM and IgG antibodies should be strengthened alongside nucleic acid tests to prevent probable cases with transmission potential from crossing the land border into China. In contact tracing investigations, the bridging role of probable cases should be considered to reconstruct the transmission chain. Editorial Office of CCDCW, Chinese Center for Disease Control and Prevention 2021-12-03 /pmc/articles/PMC8671837/ /pubmed/34934518 http://dx.doi.org/10.46234/ccdcw2021.239 Text en Copyright and License information: Editorial Office of CCDCW, Chinese Center for Disease Control and Prevention 2021 https://creativecommons.org/licenses/by-nc-sa/4.0/This work is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/ (https://creativecommons.org/licenses/by-nc-sa/4.0/)
spellingShingle Outbreak Reports
Yan, Xiangyu
Chang, Litao
Wang, Zekun
Hao, Linhui
Jia, Zhongwei
Zhang, Bo
Shui, Tiejun
Exploring the Bridge Cases’ Role in the Transmission of the SARS-CoV-2 Delta Variant — Ruili City, Yunnan Province, China, July–September 2021
title Exploring the Bridge Cases’ Role in the Transmission of the SARS-CoV-2 Delta Variant — Ruili City, Yunnan Province, China, July–September 2021
title_full Exploring the Bridge Cases’ Role in the Transmission of the SARS-CoV-2 Delta Variant — Ruili City, Yunnan Province, China, July–September 2021
title_fullStr Exploring the Bridge Cases’ Role in the Transmission of the SARS-CoV-2 Delta Variant — Ruili City, Yunnan Province, China, July–September 2021
title_full_unstemmed Exploring the Bridge Cases’ Role in the Transmission of the SARS-CoV-2 Delta Variant — Ruili City, Yunnan Province, China, July–September 2021
title_short Exploring the Bridge Cases’ Role in the Transmission of the SARS-CoV-2 Delta Variant — Ruili City, Yunnan Province, China, July–September 2021
title_sort exploring the bridge cases’ role in the transmission of the sars-cov-2 delta variant — ruili city, yunnan province, china, july–september 2021
topic Outbreak Reports
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8671837/
https://www.ncbi.nlm.nih.gov/pubmed/34934518
http://dx.doi.org/10.46234/ccdcw2021.239
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