SARS-CoV-2 Infection Among Healthcare Workers

January 10, 2023 updated by: Chao Wu, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School

The Risk of SARS-CoV-2 Infection and Severity of COVID-19 Among Healthcare Workers With or Without Previous COVID-19 Vaccines

At present, COVID-19 vaccine is considered as the safest, economic and effective measure to prevent and control COVID-19. Adaptive immunity, including humoral immunity and cellular immunity, plays a role in anti-viral responses. Cellular immunity includes virus specific B cells and T cells, which can provide long-term memory immunity. For acute viral infection, neutralizing antibody is of great significance in preventing infection, while memory cell immunity can maintain a good broad-spectrum and persistence in controlling mutant strains, which is a key factor in controlling viral replication after infection and reducing severe disease and death. However, there is no systematic study on the specific immune response and infection risk of novel coronavirus, and there is no definite conclusion on which specific protective immune response induced by vaccine can reduce the risk of infection. Therefore, this study aims to establish a prospective real-world cohort, analyze the correlation between multiple baseline immune protection indicators and infection risk, follow up the population with breakthrough infection, and monitor the dynamic specific immune response to COVID-19 in peripheral blood and respiratory mucosa. This study will provide an important scientific basis for us to scientifically assess the risk of individual infection with COVID-19.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Anticipated)

600

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

  • China
    • Jiangsu
      • Nanjing, Jiangsu, China, 210008
        • Recruiting
        • The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

Healthcare workers in Nanjing Drum Tower Hospital, Nanjing, China

Description

Inclusion Criteria:

  1. Age ≥18 years
  2. SARS-CoV-2 nucleic acid testing showed negative within 72 hours

Exclusion Criteria:

1.Do not consent to enroll in this study

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
SARS-CoV-2 infection
Time Frame: from Dec 2022 to April 2023
SARS-CoV-2 infection confirmed by either by nucleic acid testing or antigen testing
from Dec 2022 to April 2023
The severity of COVID-19
Time Frame: from Dec 2022 to April 2023
the severity of COVID-19 symptoms including the period from SARS-CoV-2 positive to negative, fever days, etc.
from Dec 2022 to April 2023

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School

Investigators

  • Principal Investigator: Chao Wu, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

February 1, 2023

Primary Completion (Anticipated)

March 21, 2023

Study Completion (Anticipated)

December 22, 2024

Study Registration Dates

First Submitted

December 22, 2022

First Submitted That Met QC Criteria

January 10, 2023

First Posted (Estimate)

January 11, 2023

Study Record Updates

Last Update Posted (Estimate)

January 11, 2023

Last Update Submitted That Met QC Criteria

January 10, 2023

Last Verified

January 1, 2023

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 20222-746

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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