Taiwan Epidemiology Bulletin

Taiwan Epidemiology Bulletin

Vol.36 No.20

The latest volume download: Vol.36 No.20.pdf(open new tab)


Outbreak Investigation

Investigation of An Imported Family Cluster of COVID-19, Central Taiwan, January 2020

DOI: 10.6525/TEB.2020 10_36(20).0001

Yang Li*, Chia-Ping Su, Wan-Ting Huang

2020 Vol.36 No.20

Correspondence Author: Yang Li*

  • Office of Preventive Medicine, Centers for Disease Control, Ministry of Health and Welfare, Taiwan


        On January 30, a 44-year-old female without a history of traveling from China was confirmed as a COVID-19 patient. The patient reported fever, cough, myalgia, and headache on January 27. Her 44-year-old husband, who just returned from Wuhan, China on January 12, had mild upper respiratory symptoms on January 21. On January 30, the Taiwan Centers for Disease Control conducted epidemiological investigation to explore the source and magnitude of this outbreak. Of 31 close contacts (10 from households, 19 from hospital, and 2 other contacts), six (19%) developed symptoms during the 14-day postexposure follow-up period, but none were tested positive for SARS-CoV-2. This cluster comprised two cases of COVID-19, with transmission by infector from Wuhan (the husband).
        We recommend that suspected COVID-19 patients from epidemic region should be notified, isolated and tested promptly. Close contacts of confirmed COVID-19 cases, particularly household contacts, should be quarantined and tested as early as possible to detect COVID-19 infection and prevent community spreading.

Keywords:COVID-19, imported, family cluster, household contact

Outbreak Investigation

Investigation of A COVID-19 Contracted Musician Traveling to Australia after Visiting Taiwan, March 2020

DOI: 10.6525/TEB.2020 10_36(20).0002

Meng-Kai Hu1*, Meng-Yu Chen1, Hsin-Yi Wei1, Chia-Ping Su 2, Xiang-Ting Huang1, sung-Hua Tung 3, Yu-Fang Tsai 1, Hsiao-Ping Tung1, Jui-Wei Hsieh1

2020 Vol.36 No.20

Correspondence Author: Meng-Kai Hu1*

  • 1Taipei Regional Center, Centers for Disease Control, Ministry of Health and Welfare, Taiwan
  • 2Office of Preventive Medicine, Centers for Disease Control, Ministry of Health and Welfare, Taiwan
  • 3Department of Health, Taipei City Government, Taipei, Taiwan


        On March 5, 2020, Taiwan Centers for Disease Control received a notification that a symptomatic traveler who traveled to Australia from Taiwan had been confirmed with Coronavirus disease 2019 (COVID-19). The patient was an Australian musician who stayed in Taiwan from February 28 to March 2. After the notification, health authorities conducted epidemiologic investigation and contact tracing. The patient stayed in United Kingdom for a long period and had intermittent cough since last winter. Because United Kingdom was not listed as an epidemic warning region at that time, he was not tested nor reported for COVID-19 at the airport quarantine station or at his clinic visit in Taipei while his symptom was getting worse. During his stay in Taiwan, he attended several public events but rarely wore a mask. Among 418 contacts identified, 148 were subjected to home quarantine, 270 were advised to conduct self health management. Overall, 52 contacts were tested for COVID-19 (including 34 people tested for enhanced surveillance); all tested negative. As of March 16, no secondary transmission was identified. To avoid imported cases related infections in Taiwan, Central Epidemic Command Center immediately updated relevant disease preventing guidance for border quarantine, public gatherings and community disease prevention.

Keywords:COVID-19, epidemiologic investigation, contact tracing

Disease Surveillance

week 41–42(Oct.4– Oct.17, 2020)

DOI: 10.6525/TEB.202010_36(20).0003

Epidemic Intelligence Center, Centers for Disease Control, Ministry of Health and Welfare, Taiwan

2020 Vol.36 No.20