Actively Recruiting
Evaluation of COVID-19 Immune Barrier and Reinfection Risk
Led by Sun Yat-sen University · Updated on 2023-03-17
300
Participants Needed
1
Research Sites
229 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
The goal of this observational study is to evaluate the protective effect of immune barrier on secondary infection after COVID-19 (coronavirus disease 2019) vaccination or COVID-19 virus Omicron B A. 5.2 strain infection by dynamically monitoring the COVID-19 antibody titer, cellular immune function and the occurrence of secondary infection of healthy participants, mainly medical staff in our hospital, to understand the cross protective effect of COVID-19 antibody on different variants of Omicron, and explore the best time to use COVID-19 vaccine to strengthen immunity after Omicron mutant infection.
CONDITIONS
Official Title
Evaluation of COVID-19 Immune Barrier and Reinfection Risk
Who Can Participate
Eligibility Criteria
You may qualify if you...
- No age or gender restrictions
- Medical, nursing, administrative, or logistics staff at the Third Affiliated Hospital of Sun Yat-Sen University or other participants able to cooperate with 48 weeks of follow-up
- Must know whether they have been infected with COVID-19 and remember the date of first infection if applicable
You will not qualify if you...
- Serious respiratory diseases such as asthma, bronchiectasis, chronic obstructive pulmonary disease, pulmonary interstitial disease, tuberculosis, or other respiratory conditions that may interfere with symptom observation
- Serious diseases or histories affecting immune function, including uncontrolled or unresectable cancers, blood diseases, cachexia, active bleeding, severe malnutrition, mental illnesses, autoimmune diseases, HIV, and similar conditions
- Plans for long-term assignments that prevent regular hospital follow-up
AI-Screening
AI-Powered Screening
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Trial Site Locations
Total: 1 location
1
The Third Affiliated Hospital of Sun Yat-sen University
Guangzhou, Guangdong, China, 510630
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
2
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