ChiCTR2000034522
正在进行
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2020-07-08
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新型冠狀病毒肺炎(COVID-19)
香港新型冠狀病毒 (COVID-19) 隱形感染調查
Delineate the prevalence, risk factors, temporal distribution and epidemiological characteristics of hidden novel coronavirus (2019-nCoV) infection in the community
1. To estimate the prevalence of hidden (mild and asymptomatic) infection of 2019-nCoV in Hong Kong based on the seroprevalence of a representative population of 3000 subjects; 2. To estimate the size of different waves of hidden infections in Hong Kong based on antibody avidity assessment of the seropositive subjects detected in (1) above; 3. To identify the epidemiologic characteristics associated with hidden infections detected in (1) above, and to elucidate the similarities and differences between different waves detected in (2) above. 4. To determine host genetic factors associated with asymptomatic and symptomatic infections.
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其它
Sex-, age-stratified randomization, generated from computer, by study investigators
N/A
Health and Medical Research Fund, Hong Kong
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600
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2020-05-15
2021-05-14
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Asymptomatic individuals, age group: <10, 10-20, 21-45, 45-64, ≥ 65 years；
登录查看Those who or their parents do not provide consent for this study.；
登录查看Health and Medical Research Fund, Hong Kong
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