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COVID-19 Immunity and Changes Over Time

NCT05271669 · Status: RECRUITING · Type: OBSERVATIONAL · Enrollment: 1350

Last updated 2026-03-18

No results posted yet for this study

Summary

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

Sponsors & Collaborators

  • Chinese University of Hong Kong

    lead OTHER

Eligibility

Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-06-06
Primary Completion
2026-07-31
Completion
2027-01-31

Countries

  • China

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05271669 on ClinicalTrials.gov