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Study identifier: NCT05271669 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

COVID-19 Immunity and Changes Over Time

Condition: COVID-19  ·  Sponsor: Chinese University of Hong Kong

PhaseN/A
Planned participants1350
Who can joinAll sexes, N/A to no upper limit
Healthy volunteersNo

About this study

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.

This description comes directly from the study's public registry record.

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Contact details are listed per location below or on the registry record.

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Locations (1)

Shui Shan LeeHong Kong, HONG KONG, ChinaRecruiting

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Source record: clinicaltrials.gov/study/NCT05271669