A Prospective Virtual Study to Evaluate the Longevity of IgG Antibodies in Individuals Exposed to COVID-19

Immunity Against COVID-19 Vaccine in Healthcare Workers in Argentine

NCT04843917 ·Status: COMPLETED

Prognostic Value of IgM in Covid-19 Infection

NCT05092594 ·Status: UNKNOWN

Multisite Observational Maternal and Infant Study for COVID-19

NCT05031468 ·Status: COMPLETED

Antiviral T Lymphocyte Immunity During Acute COVID-19 Infection

NCT04707820 ·Status: COMPLETED ·Phase: NA

Correlation Study of Isotype Switching and Neutralizing Capacity to the COVID-19 Variants Strain

NCT05087277 ·Status: UNKNOWN

Study of Immune Response During SARS-CoV-2 Infection - (COVID-19)

NCT04355351 ·Status: COMPLETED ·Phase: NA

Transfusion-Transmitted Cytomegalovirus Prevention in Neonates

NCT00000584 ·Status: COMPLETED ·Phase: PHASE3

Immunity Against SARS-CoV2 in Children and Their Parents / COVID-19

NCT04355533 ·Status: COMPLETED ·Phase: NA

Validating an ELISpot for Early Detection of an Active Immune Response Against COVID-19

NCT04418206 ·Status: COMPLETED ·Phase: NA

Description of Immunologic, Enzymatic and Metabolic Biomarkers Associated to the Severity of COVID-19 (SARS-CoV-2) and Its Resolution

NCT04664023 ·Status: COMPLETED

Evaluation of COVID-19 Immune Barrier and Reinfection Risk

NCT05774093 ·Status: RECRUITING

IgG/IgM Antibody Test in Patients Who Have Tested Negative or Positive for COVID-19 With the Standard Method of COVID19 Testing.

NCT04402814 ·Status: UNKNOWN

COVID-19 in PID Survey

NCT04459689 ·Status: RECRUITING

COVID 19-Caregivers IGg Seroconversion

NCT04353323 ·Status: UNKNOWN

Rapid Screening Test for Covid-19 Antibodies in Healthcare Workers

NCT04525417 ·Status: COMPLETED ·Phase: NA

Factors Associated With a Positive SARS-CoV-2 Serology in Contact Subjects at High/Moderate Risk of Coronavirus SARS-CoV-2 Infection. COVID-19.

NCT04322279 ·Status: TERMINATED

Immune Responses to COVID-19; Isolation of Neutralizing Antibodies for Therapeutics and Vaccine.

NCT04596098 ·Status: COMPLETED

Immunoglobulin G Antibody Immune Response Profile Following Infection With SARS-CoV-2 in COVID-19 Egyptian Patients

NCT04483622 ·Status: COMPLETED

Seroprevalence of Infection-induced SARS-CoV-2 Antibodies (COVID-19) in Children

NCT05358626 ·Status: COMPLETED

Neutralizing Power of Anti-SARS-CoV-2 (Anti-COVID-19) Serum Antibodies

NCT05315583 ·Status: TERMINATED ·Phase: NA

Coronavirus Disease 2019 (COVID-19) Antibody Plasma Research Study in Hospitalized Patients

NCT04524507 ·Status: COMPLETED ·Phase: PHASE2

Immunogenicity Against SARS-CoV-2 in COVID-19 Close Contacts

NCT05094635 ·Status: UNKNOWN

The Long-term Impact of Invasive Meningococcal Disease in Australian Adolescents and Young Adults

NCT03798574 ·Status: COMPLETED

Mother to Child Transmission of Antibody to Covid-19 The TRAB CoV-19 Study.

NCT05305261 ·Status: COMPLETED

The Role of Obesity in Severe COVID-19 Pathophysiology

NCT06968442 ·Status: RECRUITING ·Phase: NA