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Early Epidemiological and Clinical Characteristics of 28 Cases of Coronavirus Disease in South Korea
COVID-19 National Emergency Response Center,Epidemiology and Case Management Team,Korea Centers for Disease Control and Prevention 질병관리본부 2020 Osong Public Health and Research Persptectives Vol.11 No.1
Objectives The first confirmed case of coronavirus disease 2019 (COVID-19) in South Korea was reported in January 2020, with 28 confirmed cases reported as of February 14th, 2020. The epidemiological and clinical characteristics of all 28 cases were analyzed in response to this disease. Methods The epidemiological characteristics and early clinical features of the 28 patients from Korea with confirmed COVID-19 were analyzed using COVID-19 reporting and surveillance data and the epidemiological investigation reports prepared by the rapid response team. Results There were 16 patients that entered Korea from foreign countries: Wuhan, China (11 patients), Zhuhai, China, (1 patient), Singapore (2 patients), Japan (1 patient), and Thailand (1 patient). The early symptoms were fever, sore throat, cough or sputum production, chills, and muscle ache. Three patients were asymptomatic, however, 18 developed pneumonia. Of the 28 cases, 16 were index cases imported from abroad, with 10 cases of secondary infection originating in Korea, and the route of transmission still under investigation for 2 patients. The 10 patients with secondary infection were infected from contact with family members or acquaintances of primary patients, and the suspected sites of transmission were mostly at home. Conclusion COVID-19 in Korea was spread by 16 infected individuals traveling from other countries, leading to second-generation cases. The initial symptoms were mostly minor, but the disease was infectious at this stage, resulting from close contact, particularly at home. Establishing an early detection strategy for COVID-19 is crucial for managing the transmission of the disease.
Coronavirus Disease-19: The First 7,755 Cases in the Republic of Korea
COVID-19 National Emergency Response Center,Epidemiology and Case Management Team,Korea Centers for Disease Control and Prevention 질병관리본부 2020 Osong Public Health and Research Persptectives Vol.11 No.2
We report the first 7,755 patients with confirmed COVID-19 in Korea as of March 12th, 2020. A total of 66 deaths have been recorded, giving a case fatality proportion of 0.9%. Older people, and those with comorbidities were at a higher risk of a fatal outcome. The highest number of cases of COVID-19 were in Daegu, followed by Gyeongbuk. This summary may help to understand the disease dynamics in the early phase of the COVID-19 outbreaks, and may therefore, guide future public health measures.
COVID-19 National Emergency Response Center,Epidemiology and Case Management Team,Korea Centers for Disease Control and Prevention 질병관리본부 2020 Osong Public Health and Research Persptectives Vol.11 No.3
In the above-mentioned article, the authors want to update the errors in Results and Table 3, specifically the errors in the percentages and the subheadings with clearer meaning. The authors regret this error and would like to apologize for any inconvenience caused.
Contact Transmission of COVID-19 in South Korea: Novel Investigation Techniques for Tracing Contacts
COVID-19 National Emergency Response Center,Epidemiology and Case Management Team,Korea Centers for Disease Control and Prevention 질병관리본부 2020 Osong Public Health and Research Persptectives Vol.11 No.1
In the epidemiological investigation of an infectious disease, investigating, classifying, tracking, and managing contacts by identifying the patient’s route are important for preventing further transmission of the disease. However, omissions and errors in previous activities can occur when the investigation is performed through only a proxy interview with the patient. To overcome these limitations, methods that can objectively verify the patient’s claims (medical facility records, Global Positioning System, card transactions, and closed-circuit television) were used for the recent ongoing coronavirus disease 2019 contact investigations in South Korea.