Actively Recruiting
COVID-19 Immunity and Changes Over Time
Led by Chinese University of Hong Kong · Updated on 2026-03-18
1350
Participants Needed
1
Research Sites
238 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
The risk of household spread of SARS-CoV-2 hinges on both the transmission dynamics of the virus circulating in the community as well as the seroprotection pattern of constituent members, which can be attributed to vaccination and previous infections. This study is conceptualised to assess the dynamicity of SARS-CoV-2 risk at the household level, through monitoring the pattern of seroprotection, in conjunction with the vaccination coverage, history of infection and exposure risk in the setting of Hong Kong.
CONDITIONS
Official Title
COVID-19 Immunity and Changes Over Time
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Adults aged 18 or above, or children under 18 with legal guardian consent
- Normally residing in Hong Kong
- Able to communicate in spoken and written Chinese and/or English
You will not qualify if you...
- Individuals with mental illness
- Prisoners
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 1 location
1
Shui Shan Lee
Hong Kong, HONG KONG, China, 0000
Actively Recruiting
How is the study designed?
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
0
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