Storgaard Signe Freja, Eiset Andreas Halgreen, Abdullahi Farhiya, Wejse Christian
Dan Med J. 2020 Nov 20;67(12):A08200594.
The deadly coronavirus disease 2019 (COVID-19) has rapidly become a pandemic affecting the whole world. Lower health literacy and higher mortality rates in the homeless and vulnerable population compared with the background population potentially leaves this group or people more exposed to COVID-19. This study assessed the vulnerable population of Aarhus in relation to COVID-19 infection.
Participants were tested during a six-day period in April and a four-day period in June at drop-in centres, injection rooms and homeless shelters in Aarhus. Oropharyngeal swab tests were performed and analysed with real-time quantitative polymerase chain reaction. Test days in June were supplemented with lateral flow tests for immunoglobulin (Ig) G and IgM. Prevalence and corresponding Wilson 95% confidence intervals were computed.
We tested 295 individuals in April and 141 individuals in June. All oropharyngeal swabs were COVID-19 negative. The lateral flow tests were IgM-positive in six of 129 individuals (4.7%) and IgG-positive less than five of 129 (less than 3.9%) individuals. On the day of testing, COVID-19 symptoms such as fever, coughing and/or sore throat were found in 63 of 240 (26.3%) of the participants in April and in 26 of 123 (21.1%) in June. In the April testing round, 175 of 291 (59.9%) reported to be born in Denmark. The corresponding number for the June testing round was 84 of 138 (60.9%).
Despite their vulnerable profile, the vulnerable citizens tested in Aarhus were not infected with COVID-19 at the testing day and very few participants carried antibodies.
Testing was funded by Aarhus University Hospital.
not relevant.
2019年新型冠状病毒肺炎（COVID-19）已迅速演变成一场影响全球的大流行病。与普通人群相比，无家可归者和弱势群体的健康素养较低且死亡率较高，这可能使该群体或人群更容易感染COVID-19。本研究评估了奥胡斯市弱势群体与COVID-19感染的相关性。
在4月的6天期间以及6月的4天期间，对奥胡斯的临时救助中心、注射室和无家可归者收容所的参与者进行检测。进行口咽拭子检测，并采用实时定量聚合酶链反应进行分析。6月的检测日补充了免疫球蛋白（Ig）G和IgM的侧向流动检测。计算患病率及相应的威尔逊95%置信区间。
4月我们检测了295人，6月检测了141人。所有口咽拭子的COVID-19检测结果均为阴性。侧向流动检测中，129人中有6人（4.7%）IgM呈阳性，129人中有不到5人（不到3.9%）IgG呈阳性。在检测当天，4月240名参与者中有63人（26.3%）出现COVID-19症状，如发热、咳嗽和/或喉咙痛，6月123名参与者中有26人（21.1%）出现此类症状。在4月的检测轮次中，291人中有175人（59.9%）报告出生在丹麦。6月检测轮次的相应数字为138人中有84人（60.9%）。
尽管奥胡斯市接受检测的弱势群体状况脆弱，但在检测当天他们未感染COVID-19，且仅有极少数参与者携带抗体。
检测由奥胡斯大学医院资助。
不相关。
