Official Title
SARS-CoV-2 Neutralizing Antibodies and Immunity After Vaccination of Recovered Patients With COVID-19 and Correlation With Immunity and Long-COVID-19 Symptoms
Brief Summary

We investigated the association between immune system responsibilities in Long COVIDpatients and Full recovery patients.

Detailed Description

This retrospective cohort study compared immunogenicity post COVID-19 between individuals
(aged 18-65 years and had confirmed SARS-CoV-2 infection from January to May 2022 ) with
residual Long COVID-19 symptoms (LC) and ones with full recovery (Full) related to
pathophysiology, immunology and clinical consequence.

Unknown status
Long COVID-19
Eligibility Criteria

Inclusion Criteria:

- Long COVID group; at longer than 1-month post COVID-19 based the presence of one of
the three following symptoms: fatigue/myalgia, breathlessness, and anorexia

- Full recovery group; patients with asymptomatic symptoms

- post COVID-19 they had not received any additional COVID vaccine

Exclusion Criteria:

- people who received additional vaccination after leaving quarantine before the day
of the immunization test

- pregnant patients,

- people who had a history of allergic reactions after COVID-19 vaccination or any
drugs

Eligibility Gender
All
Eligibility Age
Minimum: 18 Years ~ Maximum: 65 Years
Countries
Thailand
Locations

Faculty of Medicine Siriraj Hospital, Mahidol University
Bangkok Noi, Bangkok, Thailand

Korapat Mayurasakorn, MD., Principal Investigator
Doctor in Family Medicine

Mahidol University
NCT Number
Keywords
Long COVID-19
antibody responsibility
Immunogenicity
MeSH Terms
COVID-19
Post-Acute COVID-19 Syndrome