Purpose

The purpose of this protocol is to investigate the ability of pre-existing immunity by natural infection or vaccination to prevent infections by emerging SARS-CoV-2 variants.

Condition

Eligibility

Eligible Ages
Between 18 Years and 100 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • People who have been fully vaccinated for COVID-19 2-12 weeks prior to enrollment or individuals <3 months post-COVID-19 infection. - Collection of samples for blood samples will be done only from healthy, nonpregnant adults who weigh at least 110 pounds. - Participants must be able to provide informed consent.

Exclusion Criteria

  • Subjects considered vulnerable including children, pregnant women, nursing home residents, or other institutionalized persons, fetuses, prisoners, and persons without decisional capacity.

Study Design

Phase
Study Type
Observational
Observational Model
Cohort
Time Perspective
Retrospective

Recruiting Locations

More Details

NCT ID
NCT05171803
Status
Completed
Sponsor
University of California, Los Angeles

Detailed Description

Several variants of the SARS-CoV-2 virus were identified in 2020 including the United Kingdom variant (known as 20I/501Y.V1, VOC 202012/01, or B.1.1.7), South Africa variant (known as 20H/501Y.V2 or B.1.35), and Brazil variant (known as P.1), with more variants still being discovered. There is concern that these variants, due to mutations in spike protein and receptor-binding domain of the spike protein, can be more infectious, lethal, and potentially escape the immune responses from vaccination or prior infection. Research is needed to understand the risks associated with currently known variants of SARS-CoV-2 as well as investigate if there is potential for new mutations to form that would allow SARS-CoV-2 variants to partially or entirely escape the immune mechanisms developed from vaccination and/or prior infection from the wild-type strain of SARS-CoV-2.

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.