无症状新冠病毒感染，还是我们遗漏了什么？

Asymptomatic COVID-19 or are we missing something?

作者信息

Daniells Jazmin K, MacCallum Helen L, Durrheim David N

机构信息

Hunter New England Population Health, NSW, Australia; School of Medicine and Public Health, University of Newcastle, NSW, Australia.

出版信息

Commun Dis Intell (2018). 2020 Jul 9;44. doi: 10.33321/cdi.2020.44.55.

DOI:10.33321/cdi.2020.44.55

PMID:32640950

Abstract

The Northern Territory (NT) Centre for Disease Control (CDC) undertook contact tracing of all notified cases of coronavirus disease 2019 (COVID-19) within the Territory. There were 28 cases of COVID-19 notified in the NT between 1 March and 30 April 2020. In total 527 people were identified as close contacts over the same period; 493 were successfully contacted; 445 were located in the NT and were subsequently quarantined and monitored for disease symptoms daily for 14 days after contact with a confirmed COVID-19 case. Of these 445 close contacts, 4 tested positive for COVID-19 after developing symptoms; 2/46 contacts who were cruise ship passengers (4.3%, 95% CI 0.5-14.8%) and 2/51 household contacts (3.9%, 95% CI 0.5-13.5%). None of the 326 aircraft passengers or 4 healthcare workers who were being monitored in the NT as close contacts became cases.

摘要

北领地疾病控制中心对北领地内所有通报的2019冠状病毒病（COVID-19）病例进行了接触者追踪。2020年3月1日至4月30日期间，北领地通报了28例COVID-19病例。同期共确定了527人为密切接触者；成功联系到493人；445人位于北领地，随后进行隔离，并在与确诊的COVID-19病例接触后每天监测疾病症状，为期14天。在这445名密切接触者中，4人在出现症状后COVID-19检测呈阳性；46名游轮乘客接触者中有2人（4.3%，95%CI 0.5-14.8%），51名家户接触者中有2人（3.9%，95%CI 0.5-13.5%）。在北领地作为密切接触者接受监测的326名飞机乘客和4名医护人员中，无人感染。