Analysis of community-acquired COVID-19 cases in Taiwan

被引:14
作者
Liu, Jui-Yao [1 ,2 ]
Chen, Tzeng-Ji [1 ,2 ,3 ]
Hwang, Shinn-Jang [1 ,2 ]
机构
[1] Taipei Vet Gen Hosp, Dept Family Med, 201,Sect 2,Shi Pai Rd, Taipei 112, Taiwan
[2] Natl Yang Ming Univ, Sch Med, Taipei, Taiwan
[3] Taipei Vet Gen Hosp, Big Data Ctr, Dept Med Res, Taipei, Taiwan
关键词
Asymptomatic infections; COVID-19; Disease transmission; infectious; Severe acute respiratory syndrome coronavirus 2; Taiwan; OUTBREAK;
D O I
10.1097/JCMA.0000000000000411
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background: The demographic characteristics and transmission dynamics of the community-acquired coronavirus disease 2019 (COVID-19) cases in Taiwan were analyzed for more effective control and prevention of the community transmission of this novel disease. Methods: Open-access data and press releases on COVID-19 in Taiwan were collected on the website of the Taiwan Centers for Disease Control. All 55 community-acquired cases of COVID-19 confirmed from January 28 to April 12, 2020, in Taiwan were included. Basic demographic characteristics, symptom presentation, infection source, route of identification, and transmission dynamics were analyzed. Results: Of the 55 cases, 52.7% were female and 74.5% were between 20-59 years of age. One-sixth (16.4%) of community-acquired cases were asymptomatic. More than half (58.2%) of the cases were identified via contact tracing. The median incubation period was 6 days (range 1-13 d) and the median serial interval was 4 days (range -3-24 d). Twenty-six cases (47.3%) were transmitted from presymptomatic cases, 11 cases (20%) from symptomatic cases, and 2 cases (3.6%) from an asymptomatic case. The contagious period of symptomatic cases was from 7 days before to 15 days after the onset of symptoms. Conclusion: The high proportion of asymptomatic cases and the transmissibility in the presymptomatic and asymptomatic periods make control of COVID-19 challenging. Protective measures such as social distancing, wearing face masks, and hand washing are mandatory to prevent community transmission.
引用
收藏
页码:1087 / 1092
页数:6
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