We use cookies to understand how you use our site and to improve your experience. This includes personalizing content and advertising. To learn more, click here. By continuing to use our site, you accept our use of cookies. Cookie Policy.

Features Partner Sites Information LinkXpress
Sign In
Advertise with Us
RANDOX LABORATORIES

Download Mobile App





Rapid Blood Test Could Confirm COVID-19 Vaccination in Minutes

By LabMedica International staff writers
Posted on 07 Jun 2021
Print article
Image: An image taken from a YouTube video shows results of a rapid blood test developed by Johns Hopkins researchers that can confirm in minutes if a person has been vaccinated for SARS-CoV-2, the virus that causes COVID-19 (Photo courtesy of Robert Kruse)
Image: An image taken from a YouTube video shows results of a rapid blood test developed by Johns Hopkins researchers that can confirm in minutes if a person has been vaccinated for SARS-CoV-2, the virus that causes COVID-19 (Photo courtesy of Robert Kruse)
Researchers have developed a rapid blood test that can confirm in minutes if a person has been vaccinated for SARS-CoV-2, the virus that causes COVID-19.

The rapid blood test developed by scientists at the Johns Hopkins University (JHU; Baltimore, MD, USA) could confirm a person has been vaccinated while they wait to board a plane or enter a sporting event. Their COVID-19 antibody test is similar to one used at home to determine blood type, where the user pricks a finger and places a drop of blood on a card. A fusion protein developed by the research team is housed on the card and detects COVID-19 antibodies, tiny proteins in the blood the immune system produces to “remember” viral encounters and provide immunity to future infections. Results come back in less than five minutes, faster than current lateral flow tests to detect antibodies at point of care, while also potentially providing a clearer result. Immunocompromised patients, who studies have shown don’t always respond to the COVID-19 vaccine, could test their antibody level and see if the vaccine is working for them, according to the researchers.

The test uses hemagglutination, in which the degree of clumping together of red blood cells reveals the concentration of antibodies. The hemagglutination results could let people know if they still have protection months after they received the vaccine or if they need a booster shot. The degree of hemagglutination also correlated with levels of neutralizing antibodies in patients, which protect against viral infection. In a study on 400 blood samples, half of which were from prior COVID-19 patients, the test correctly identified antibodies in previously infected patients 87.5% of the time, a slightly higher rate than ELISA tests performed in hospitals that require hours to perform. The test could be used to confirm a person’s vaccination instead of having to show a vaccine card, according to Robert Kruse, M.D., Ph.D., who created the blood test.

“If a business is using the honor system for vaccinations, now they could test people on-site,” said Kruse.

Related Links:
Johns Hopkins University

Gold Supplier
SARS-CoV-2/Flu A/B & RSV Test
RespiBio Panel 3 (RBRP3)
New
Fluorescence Immunoassay Analyzer
FIATEST
New
Malaria Molecular Detection System
HumaLoop M
New
Vented Safety Enclosures
VSE Balance Enclosures

Print article

Channels

Clinical Chem.

view channel
Image: Illustration is of the Vertical Auto Profile (VAP) Lipid test with clear demarcation of the different lipoprotein classes and subclasses. (Photo courtesy of VAP Diagnostics Laboratory)

Lipoprotein(a) Concentrations Correlate With LDL-C in Diabetic Children

Cardiovascular disease (CVD) is a significant cause of mortality in those with diabetes. Increased apolipoprotein B (apoB) and low-density lipoprotein cholesterol (LDL-C) have been shown in pediatric patients... Read more

Molecular Diagnostics

view channel
Image: Model of the PD-1 (Programmed cell death protein 1) protein. Only a subset of recurrent glioblastomas respond to anti-PD-1 immunotherapy (Photo courtesy of Wikimedia Commons)

Biomarker Predicts Potential Benefit of Checkpoint Inhibitor Therapy for Brain Cancer Patients

A phosphorylated form of ERK (extracellular signal-regulated kinase) protein has been identified as a biomarker that may be used to predict which brain cancer patients might benefit from checkpoint inhibitor... Read more

Hematology

view channel
Image: The UniCel DxH 800 Coulter Cellular Analysis System (Photo courtesy of Beckman Coulter)

Monocyte Distribution Width Predicts Sepsis in Critically Ill Patients

Sepsis has been reported as a major cause of increased morbidity, length of stay and mortality among patients hospitalized in Intensive Care Units (ICUs) for any cause. The survival of patients developing... Read more

Immunology

view channel
Image: Procartaplex Immunoassays Kits are based on the principles of a sandwich ELISA, using two highly specific antibodies binding to different epitopes of one protein to quantitate all protein targets simultaneously (Photo courtesy of Thermo Fisher Scientific)

Assay Developed for Patient-Specific Monitoring and Treatment for Ovarian Cancer

Tumors can influence peripheral immune macroenvironment, thereby creating opportunities for non-invasive serum/plasma immunobiomarkers for immunostratification and immunotherapy designing.... Read more

Microbiology

view channel
Image: Clinical metagenomics (CMg) using nanopore sequencing (Photo courtesy of Oxford Nanopore Technologies)

Same Day Test Identifies Secondary Infections in COVID-19 Patients

The intensive care unit (ICU) is a dynamic environment with frequent staff-patient contact for invasive monitoring, interventions and personal care that together introduce the risk of secondary or nosocomial... Read more

Pathology

view channel
Image: The Ventana BenchMark Ultra autostainer is for cancer diagnostics with automation and the test menu include IHC, ISH, and FITC tests (Photo courtesy of Ventana Medical System)

Specific Biomarker Investigated for Triple-Negative Breast Cancer Diagnosis

Triple-negative breast cancer (TNBC) is defined by the lack of estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2) expression and comprises a heterogeneous... Read more

Technology

view channel
Image: PKeye Workflow Monitor System (Photo courtesy of PerkinElmer, Inc.)

PerkinElmer’s New Cloud-Based Platform Enables Laboratory Personnel to Remotely Manage Its Instruments in Real-Time

PerkinElmer, Inc. (Waltham, MA; USA) has launched its PKeye Workflow Monitor, a cloud-based platform enabling laboratory personnel to remotely manage and monitor their PerkinElmer instruments and workflows... Read more

Industry

view channel
Illustration

Global HBA1c Laboratory Tests Market Driven by Rise in Diabetic Population

The global HBA1c laboratory tests market is projected to expand at a significant pace over the coming years, driven by an increase in the prevalence of diabetes, rise in prescription rate of HBA1c tests... Read more
Copyright © 2000-2021 Globetech Media. All rights reserved.