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SARS-CoV-2 antibodies are detectable up to a year after infection, finds study

A team of scientists from the United States has recently investigated the robustness and durability of anti-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibodies in coronavirus disease 2019 (COVID-19) patients. Their findings reveal that COVID-19 patients exhibit a strong anti-SARS-CoV-2 antibody response for up to 1 year and that the robustness of antibody response depends on the patient’s age and disease severity.

3 May 2021

New NCCN patient guidelines on anemia and neutropenia published

The National Comprehensive Cancer Network announced today the publication of new NCCN Guidelines for Patients: Anemia and Neutropenia, Low Red and White Blood Cell Counts funded by the NCCN Foundation and endorsed by The Leukemia and Lymphoma Society (LLS).

3 May 2021

SARS-CoV-2 spike mutations during transmission among humans and to animals

A fascinating new study discusses the 40 mutations that are seen on the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike protein and their potential effects on viral biology.

3 May 2021

COVID-19 may not have appeared first in China, suggests new genomic study

A new study in Acta Mathematica Scientia suggests that the virus may have originated in multiple countries almost simultaneously, rather than spreading from China to the rest of the world.

3 May 2021

Hopeaphenol inhibits entry of SARS-CoV-2 variants of concern into cells

A new study, released as a preprint on the bioRxiv* server, reports promising results with the natural product hopeaphenol, which successfully prevented the entry of the virus into host cells.

3 May 2021

Class I HLA alleles shape CD8+ T cell repertoire in SARS-CoV-2 infection

An interesting new study discusses how adaptive cellular immunity against the SARS-CoV-2 is dependent on differences in HLA-encoding genes between patients.

3 May 2021

Most long COVID-19 sequelae affect people under 65, finds study

A new study, released as a preprint on the medRxiv* server, discusses the typical symptoms and signs of this syndrome, with the intention of improving the specificity of detection and reporting.

3 May 2021

Detecting rare blood clots was a win, but US vaccine safety system still has gaps

The quick detection of an ultra-rare blood clotting reaction in some Covid-19 vaccine recipients showed the power of a federal warning system for vaccine safety issues, but experts worry that blind spots in the program could hamper detection of other unexpected side effects.

3 May 2021

A new SARS-CoV-2 variant (HMN.19B) has been identified in France

New research published in the Centers for Disease Control and Prevention’s journal Emerging Infectious Diseases has confirmed the emergence of a new SARS-CoV-2 variant called HMN.19B from the viral clade 19B in France. The 19B viral clade — which includes the D614G variant — was prevalent in late 2019 but had since been rarely observed since early 2020 because of newer viral clades.

3 May 2021

Vaccine candidate targeting SARS-CoV-2 nucleocapsid protein elicits protective immune response in animal model

New preclinical results from a study led by David Masopust of the University of Minnesota in Minneapolis, USA, show that a Had5-based vaccine targeting the nucleocapsid protein can also elicit a protective immune response.

3 May 2021

Competitive multiplex binding assay can monitor SARS-CoV-2 immune responses using nanobodies

Researchers at the Eberhard Karls University and the University of Tübingen in Germany described 11 unique nanobodies (Nbs) specific for the SARS-CoV-2 spike receptor-binding domain (RBD), of which 8 Nbs potentially inhibit the connection of RBD with the angiotensin-converting enzyme 2 (ACE2).

3 May 2021

Study finds one-third of COVID-19 patients experience neurological symptoms

The research on the short and long-term effects of COVID-19 disease is ongoing. Still, scientists have found severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) affects the brain causing loss of smell and taste, dizziness, muscle pain, fatigue, and other cognitive impairments. However, it remained unknown why certain people developed neurological symptoms while others did not.

3 May 2021

Study estimates true number of COVID-19 deaths by U.S. county

Every country has been affected by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that has spawned a pandemic. For several factors, the United States has been hit hard by the number of coronavirus cases and death. The country currently leads the world with over 32.4 million infections and more than 577,000 COVID-19 deaths.

3 May 2021

Researchers identify novel SARS-CoV-2 variant with mutations in membrane protein-encoding gene

A recent study published in the Journal Emerging Microbes and Infections has highlighted the emergence of a novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant with mutations in the membrane protein-encoding gene. Two potential mutations, M:I82T and M:V70L, have been identified within the transmembrane helices, which are expected to improve viral fitness by modulating glucose uptake during replication.

3 May 2021

Researchers develop a nanoparticle-based formulation with anti-SARS-CoV-2 activity

A study recently published in the journal Matter has demonstrated the development and validation of a nanoparticle-based formulation, capable of completely inhibiting the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection blocking the interaction between viral spike protein and host cell angiotensin-converting enzyme 2 (ACE2).

3 May 2021

Study implies a likely rise of future SARS-CoV-2 recombinants

A recent astonishing feat by US researchers revealed that recombination is not only widespread in the evolutionary history of SARS-like coronaviruses, but it can also increase fitness traits of seasonal coronaviruses. Their paper is currently available on the bioRxiv* preprint server and sets the stage for phylogenetic tracking of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).

2 May 2021

Live "attenuated" influenza virus vaccine protects animals against respiratory infections, including SARS-CoV-2

Researchers in the United States and Austria have demonstrated the potential of a modified influenza virus as a vaccine to protect against viral respiratory pathogens, including the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that causes coronavirus disease 2019 (COVID-19).

2 May 2021

Previously infected vaccinees broadly neutralize SARS-CoV-2 variants of concern

Researchers in the United States have conducted a study demonstrating the effectiveness of first-generation vaccines at protecting against variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in individuals who have previously been infected with the virus.

2 May 2021

Researchers report rare case of cardiac arrhythmias in a neonate with Turner syndrome

Doctors treating babies born with Turner syndrome need to look for heart rhythm abnormalities, in addition to the usual heart problems of high blood pressure or left-sided structural heart defects, according to Meena Bolourchi, MD, assistant professor of pediatrics at Boston University School of Medicine.

30 Apr 2021

Applications of nanoparticles in combating COVID-19

Researchers review the various properties and use of nanoparticles in targeting SARS-CoV-2 and how they could be used to develop new therapeutics and diagnostics for SARS-CoV-2.

30 Apr 2021