Evaluation of COVID-19 Immune Barrier and Reinfection Risk
Recruiting
Observational Study
COVID-19 Infection
Immunization; Infection
No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
Healthy Volunteers Welcome
You do not need to have the condition being studied to take part.
No Study Drug
Researchers observe your health over time — no experimental treatment is given.
At a Glance
- Sex
- Any
- Study type
- Observational
- Participants needed
- 300 (estimated)
- Sponsor
- Sun Yat-sen University · Other
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About This Trial
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 hosp…
Trial Locations
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Eligibility Criteria
Inclusion Criteria:
1. No age limit, no gender limit;
2. Medical staff, administrative and logistics staff who work in the Third Affiliated Hospital of Sun Yat-Sen University or other participants who can cooperate with the follow-up for 48 weeks;
3. The participants need to be sure whether they ha…
Contacts
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