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The epidemiology of reverse transmission of COVID-19 in Gansu Province, China
BACKGROUND: The transmission of COVID-19 is about to come under control within China, however, an emerging challenge to the Chinese authorities is reverse transmission due to COVID-19 patients/carriers evacuating from overseas to China. METHODS: We analysed the epidemiological characteristics of 311...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier Ltd.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7215163/ https://www.ncbi.nlm.nih.gov/pubmed/32407893 http://dx.doi.org/10.1016/j.tmaid.2020.101741 |
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author | Fan, Jingchun Liu, Xiaodong Shao, Guojun Qi, Junpin Li, Yi Pan, Weimin Hambly, Brett D. Bao, Shisan |
author_facet | Fan, Jingchun Liu, Xiaodong Shao, Guojun Qi, Junpin Li, Yi Pan, Weimin Hambly, Brett D. Bao, Shisan |
author_sort | Fan, Jingchun |
collection | PubMed |
description | BACKGROUND: The transmission of COVID-19 is about to come under control within China, however, an emerging challenge to the Chinese authorities is reverse transmission due to COVID-19 patients/carriers evacuating from overseas to China. METHODS: We analysed the epidemiological characteristics of 311 Chinese citizens evacuated from Iran. All confirmed COVID-19 cases amongst the returnees were displayed by the spatial distribution pattern of the extent of COVID-19 infection. RESULTS: Characteristics that differed significantly amongst these returnees compared to the original infected cohorts in Gansu were mean age, occupation and sex. Differences observed between infected patients and non-patients amongst returnees were age, sex, race, occupation, the use of facemasks, and residential situation in Iran. The clinical features that were significantly related to infection were chill, shortness of breath, chest pain and nausea. Spatial distribution pattern analysis indicated that infected returnees had resided within Iranian provinces that had experienced high levels of COVID-19. The spatial distribution of the original homes of these returnees before departure for Iran demonstrated that returnees will largely return to northwest China, to regions that have only experienced low levels of infection within China. CONCLUSION: Blocking the reverse transmission of COVID-19 is critical in preventing a secondary outbreak of COVID-19. |
format | Online Article Text |
id | pubmed-7215163 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Elsevier Ltd. |
record_format | MEDLINE/PubMed |
spelling | pubmed-72151632020-05-12 The epidemiology of reverse transmission of COVID-19 in Gansu Province, China Fan, Jingchun Liu, Xiaodong Shao, Guojun Qi, Junpin Li, Yi Pan, Weimin Hambly, Brett D. Bao, Shisan Travel Med Infect Dis Article BACKGROUND: The transmission of COVID-19 is about to come under control within China, however, an emerging challenge to the Chinese authorities is reverse transmission due to COVID-19 patients/carriers evacuating from overseas to China. METHODS: We analysed the epidemiological characteristics of 311 Chinese citizens evacuated from Iran. All confirmed COVID-19 cases amongst the returnees were displayed by the spatial distribution pattern of the extent of COVID-19 infection. RESULTS: Characteristics that differed significantly amongst these returnees compared to the original infected cohorts in Gansu were mean age, occupation and sex. Differences observed between infected patients and non-patients amongst returnees were age, sex, race, occupation, the use of facemasks, and residential situation in Iran. The clinical features that were significantly related to infection were chill, shortness of breath, chest pain and nausea. Spatial distribution pattern analysis indicated that infected returnees had resided within Iranian provinces that had experienced high levels of COVID-19. The spatial distribution of the original homes of these returnees before departure for Iran demonstrated that returnees will largely return to northwest China, to regions that have only experienced low levels of infection within China. CONCLUSION: Blocking the reverse transmission of COVID-19 is critical in preventing a secondary outbreak of COVID-19. Elsevier Ltd. 2020 2020-05-12 /pmc/articles/PMC7215163/ /pubmed/32407893 http://dx.doi.org/10.1016/j.tmaid.2020.101741 Text en © 2020 Elsevier Ltd. All rights reserved. Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active. |
spellingShingle | Article Fan, Jingchun Liu, Xiaodong Shao, Guojun Qi, Junpin Li, Yi Pan, Weimin Hambly, Brett D. Bao, Shisan The epidemiology of reverse transmission of COVID-19 in Gansu Province, China |
title | The epidemiology of reverse transmission of COVID-19 in Gansu Province, China |
title_full | The epidemiology of reverse transmission of COVID-19 in Gansu Province, China |
title_fullStr | The epidemiology of reverse transmission of COVID-19 in Gansu Province, China |
title_full_unstemmed | The epidemiology of reverse transmission of COVID-19 in Gansu Province, China |
title_short | The epidemiology of reverse transmission of COVID-19 in Gansu Province, China |
title_sort | epidemiology of reverse transmission of covid-19 in gansu province, china |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7215163/ https://www.ncbi.nlm.nih.gov/pubmed/32407893 http://dx.doi.org/10.1016/j.tmaid.2020.101741 |
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