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Viral RNA in the blood found to be a reliable indicator of COVID-19 mortality risk

The amount of a SARS-CoV-2 genetic material-;viral RNA-;in the blood is a reliable indicator in detecting which patients will die of the disease, a team led by Université de Montréal medical professor Dr. Daniel Kaufmann has found.

26 Nov 2021

Efficacy and safety of an RBD-based recombinant protein COVID-19 vaccine

A study developed a protein-based subunit vaccine, PHH-1V, that consisted of a recombinant RBD fusion heterodimer of the alpha) and beta variants of SARS-CoV-2.

26 Nov 2021

SARS-CoV-2 vaccine based on vesicular stomatitis virus exhibits high neutralizing efficacy against variants

Scientists have tested the efficacy of BriLife®-vaccinated human sera in neutralizing more infectious and probably more virulent SARS-CoV-2 variants.

26 Nov 2021

A review of natural immunity, vaccines, and variants in SARS-CoV-2 reinfection

In a literature review article published in the Journal of Community Hospital Internal Medicine Perspectives, authors from the US performed a thorough investigation of previous studies and case reports of SARS-CoV-2 reinfection. This review discusses the role of natural immunity, vaccines, and SARS-CoV-2 variants in reinfection.

25 Nov 2021

Study explores adverse effects of SARS-CoV-2-induced antibody responses

The authors of a research paper published in the journal Frontiers in Immunology used Sandwich ELISA tests to determine the distribution of IgG sub-classes and complement activation levels in plasma from convalescent individuals.

25 Nov 2021

Researchers reveal possible role for anti-idiotype antibodies in long-term effects of COVID-19

With around 256 million cases and more than 5 million deaths worldwide, the COVID-19 pandemic has challenged scientists and those in the medical field.

25 Nov 2021

Using metal nanoparticles to fight SARS-CoV-2

A recent review article looks at the potential of nanotechnology in fighting severe acute respiratory syndrome 2 (SARS-CoV-2), with several possibilities of strategies in therapeutics, vaccines, and prevention.

25 Nov 2021

COVID-19 vaccine boosters to prevent breakthrough SARS-CoV-2 infections in healthy adults

Researchers measured anti-RBD IgG and virus neutralization before and after vaccination with boosters.

25 Nov 2021

Safety and immunogenicity of COVID-19 peptide vaccine

In a study published in Nature, researchers from University Hospital Tübingen have been investigating the results from a Phase I trial for a new vaccine against SARS-CoV-2 variants.

25 Nov 2021

Researchers investigate Moderna COVID-19 vaccine efficacy

Researchers have been investigating the vaccine efficacy of the mRNA-1273 vaccine.

25 Nov 2021

SARS-CoV-2 Delta variant mutation sites

A new review article dissected the sites of mutation in the RBD of the Delta variant and other variants of concern and variants of alert and interest.

25 Nov 2021

Serum SARS-CoV-2 antigen: A better predictor of COVID-19 severity

In this perspective, a new study published on the medRxiv* preprint server analyzed the clinical efficacy of two serum antigen tests to identify SARS CoV-2 infection and evaluate the kinetics of serum nucleocapsid (N) antigen in severe and non-severe patients for disease severity prediction.

24 Nov 2021

Treatment with antihistamines associated with improved responses to immunotherapy

New research from The University of Texas MD Anderson Cancer Center found that treatment with antihistamines, a commonly used allergy medication, was associated with improved responses to immune checkpoint inhibitors.

24 Nov 2021

SARS-CoV-2 reinfection and the natural immune response

Researchers review available literature on immunity and SARS-CoV-2 infection to elucidate mechanisms behind SARS-CoV-2 immunity and reinfections.

24 Nov 2021

An assessment of potential epitopes in SARS-CoV-2 structural proteins

Researchers utilized multiple bioinformatics resources to identify potent T- and B-cell epitopes of four SARS-CoV-2 structural proteins.

24 Nov 2021

The antimicrobial properties of the lungfish cocoon

Researchers investigate if the immune system of lungfish plays a role in estivation.

24 Nov 2021

Similar antibody responses to spike protein in COVID-19 survivors and vaccine recipients

Researchers conducted a study on COVID-19 convalescent patients and post-vaccinated populations to identify the minimal levels of antibody required to protect against SARS-CoV-2 infection.

24 Nov 2021

Antibody persistence in infants after maternal COVID-19 vaccination

New research finds COVID-19 vaccination during pregnancy results in significantly greater antibody persistence in the infants compared to natural infection of the mothers during pregnancy.

24 Nov 2021

Bat coronavirus ecology, evolution, and spillover

In a review published in Nature Reviews Microbiology, the authors collate information about the ecology and evolution of bat coronaviruses.

24 Nov 2021

Limited immune responses three months after Pfizer-BioNTech vaccination among elderly

In this study, published on the medRxiv* preprint server, the humoral response to SARS-CoV-2 was assessed before and after three months of administration of the BNT162b2 mRNA COVID-19 vaccination (Pfizer-BioNTech). In addition, elders' humoral responses were compared to those of a younger group, and a functional neutralization experiment against the Wuhan-Hu-1 (WH1) virus and the Delta variant was carried out.

23 Nov 2021