Covid19 Clinical Trial
Official title:
Lung Function, Exercise Capacity, and Serology Responses in Patients With COVID-19
(a) Objectives 1. To assess the full lung function, exercise capacity, quality of life in patients with COVID-19 over 2 years. 2. To assess the longevity of the serology response to SARS-CoV2. 3. To investigate the association of the neutralization titer in plasma from different vaccinated cohorts to its protection of infection using in vivo model 4. To investigate the SARS-CoV-2 specific cellular and humoral immunities as well as their determinant factors from community subjects who have received different types of COVID-19 vaccines. 5. To assess the third booster dose for subjects who have poor antibody response despite having received two doses of CoronaVac (Sinovac)
The health conditions of adults (N=300) who recovered from varying severity of COVID-19 will be assessed and their blood are collected at 6, 12, 24 and 36 months after discharge. The assessment package includes: lung function tests, 6-min walk distance, chest radiographs/CT, and SF36 General Health questionnaire. Blood samples from community cohorts will be collected from before and up to 36 months after receiving one of the three COVID-19 vaccines (N=200 per vaccine type). The kinetics of SARS-CoV-2 specific humoral and cellular immunities from both convalescent and vaccinated cohorts are determined by neutralization assay and by measuring specific T cell responses upon stimulation of SARS-CoV-2 specific peptide library respectively. The antiviral level of the human plasma with various neutralization titer collected from different vaccinated cohorts will be tested in mouse model and ADCC assay. ;
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