{"title":"北丹麦地区医院COVID-19接触者追踪:回顾性审查","authors":"Dorte Fromberg, Nina Ank, Hans L Nielsen","doi":"10.1177/17571774221107754","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>The Department of Infection Control, at our University Hospital conducted contact tracing of COVID-19 positive patients and staff members at all hospitals in the North Denmark Region.</p><p><strong>Aim: </strong>To describe the contact tracing performed during the COVID-19 pandemic in the Region and its outcomes.</p><p><strong>Methods: </strong>Data from each contact tracing were collected prospectively during 14 May 2020-26 May 2021. Data included information about the index case (patient or hospital staff member), presentation (asymptomatic vs symptomatic), probable source of transmission (community-acquired or hospital-acquired), number of close contacts and if any of these were SARS-CoV-2 PCR-test positive.</p><p><strong>Findings: </strong>362 contact tracing were performed. A total of 573 COVID-19 positive cases were identified among 171 (30%) patients and 402 (70%) staff members. 192 (34%) of all cases were tested due to symptoms of COVID-19, whereas two-third were tested for other reasons including outbreak and systematic screening tests. A total of 1575 close contacts were identified, including 225 (14%) patients and 1350 (86%) staff members. 100 (6%) close contacts, including 24 patients and 76 staff members, were infected with SARS-CoV-2, of which 33 (43%) staff members was positive at day 0 i.e. the same day as being identified as close contacts.</p><p><strong>Discussion: </strong>We found a three to one of close contacts to each index case, but only 6% became SARS-CoV-2 positive, with a surprisingly high number of those identified at day 0. Our data confirm that regular testing of patients and staff will identify asymptomatic carriers and thereby prevent new cases.</p>","PeriodicalId":16094,"journal":{"name":"Journal of Infection Prevention","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9207588/pdf/","citationCount":"0","resultStr":"{\"title\":\"COVID-19 contact tracing in the hospitals located in the North Denmark region: A retrospective review.\",\"authors\":\"Dorte Fromberg, Nina Ank, Hans L Nielsen\",\"doi\":\"10.1177/17571774221107754\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>The Department of Infection Control, at our University Hospital conducted contact tracing of COVID-19 positive patients and staff members at all hospitals in the North Denmark Region.</p><p><strong>Aim: </strong>To describe the contact tracing performed during the COVID-19 pandemic in the Region and its outcomes.</p><p><strong>Methods: </strong>Data from each contact tracing were collected prospectively during 14 May 2020-26 May 2021. Data included information about the index case (patient or hospital staff member), presentation (asymptomatic vs symptomatic), probable source of transmission (community-acquired or hospital-acquired), number of close contacts and if any of these were SARS-CoV-2 PCR-test positive.</p><p><strong>Findings: </strong>362 contact tracing were performed. A total of 573 COVID-19 positive cases were identified among 171 (30%) patients and 402 (70%) staff members. 192 (34%) of all cases were tested due to symptoms of COVID-19, whereas two-third were tested for other reasons including outbreak and systematic screening tests. A total of 1575 close contacts were identified, including 225 (14%) patients and 1350 (86%) staff members. 100 (6%) close contacts, including 24 patients and 76 staff members, were infected with SARS-CoV-2, of which 33 (43%) staff members was positive at day 0 i.e. the same day as being identified as close contacts.</p><p><strong>Discussion: </strong>We found a three to one of close contacts to each index case, but only 6% became SARS-CoV-2 positive, with a surprisingly high number of those identified at day 0. Our data confirm that regular testing of patients and staff will identify asymptomatic carriers and thereby prevent new cases.</p>\",\"PeriodicalId\":16094,\"journal\":{\"name\":\"Journal of Infection Prevention\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2022-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9207588/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Infection Prevention\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1177/17571774221107754\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2022/6/17 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q4\",\"JCRName\":\"INFECTIOUS DISEASES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Infection Prevention","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1177/17571774221107754","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2022/6/17 0:00:00","PubModel":"Epub","JCR":"Q4","JCRName":"INFECTIOUS DISEASES","Score":null,"Total":0}
COVID-19 contact tracing in the hospitals located in the North Denmark region: A retrospective review.
Background: The Department of Infection Control, at our University Hospital conducted contact tracing of COVID-19 positive patients and staff members at all hospitals in the North Denmark Region.
Aim: To describe the contact tracing performed during the COVID-19 pandemic in the Region and its outcomes.
Methods: Data from each contact tracing were collected prospectively during 14 May 2020-26 May 2021. Data included information about the index case (patient or hospital staff member), presentation (asymptomatic vs symptomatic), probable source of transmission (community-acquired or hospital-acquired), number of close contacts and if any of these were SARS-CoV-2 PCR-test positive.
Findings: 362 contact tracing were performed. A total of 573 COVID-19 positive cases were identified among 171 (30%) patients and 402 (70%) staff members. 192 (34%) of all cases were tested due to symptoms of COVID-19, whereas two-third were tested for other reasons including outbreak and systematic screening tests. A total of 1575 close contacts were identified, including 225 (14%) patients and 1350 (86%) staff members. 100 (6%) close contacts, including 24 patients and 76 staff members, were infected with SARS-CoV-2, of which 33 (43%) staff members was positive at day 0 i.e. the same day as being identified as close contacts.
Discussion: We found a three to one of close contacts to each index case, but only 6% became SARS-CoV-2 positive, with a surprisingly high number of those identified at day 0. Our data confirm that regular testing of patients and staff will identify asymptomatic carriers and thereby prevent new cases.
期刊介绍:
Journal of Infection Prevention is the professional publication of the Infection Prevention Society. The aim of the journal is to advance the evidence base in infection prevention and control, and to provide a publishing platform for all health professionals interested in this field of practice. Journal of Infection Prevention is a bi-monthly peer-reviewed publication containing a wide range of articles: ·Original primary research studies ·Qualitative and quantitative studies ·Reviews of the evidence on various topics ·Practice development project reports ·Guidelines for practice ·Case studies ·Overviews of infectious diseases and their causative organisms ·Audit and surveillance studies/projects