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Research explains recognized sex differences in COVID-19 outcomes

The COVID-19 pandemic has notably taken a more significant toll on men compared to women, in terms of both disease severity and death. Now, a new study by researchers at the Icahn School of Medicine at Mount Sinai and published on the preprint server medRxiv in August 2020 confirms the increased risk that males have for death following COVID-19 while also highlighting worse outcomes in women with coronary artery disease, obesity, and hypoxia compared to men.

3 Aug 2020

SARS-CoV-2 lured away and trapped by a new decoy version of ACE2

Researchers in the United States and Canada have engineered affinity-optimized “receptor traps” that prevent severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from binding to and infecting cells.

3 Aug 2020

SARS-CoV-2 spike protein recognized by innate immune receptors in a glycan-dependent way

The spread of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) depends on its ability to infect new host cells following its replication and release from infected cells. This pivots on its ability to bind to cell surface receptors like the ACE2 enzyme.

3 Aug 2020

Severe fatigue common in COVID-19, independent of disease severity

Patients with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection often complain of fatigue, but now a new study shows that it also causes severe and frequent fatigue in those who recover after mild illness too.

2 Aug 2020

New bivalent vaccine delivers robust cell-mediated and humoral immunity against SARS-CoV-2

In a groundbreaking bioRxiv study, US researchers demonstrate the capability of next-generation bivalent human adenovirus serotype 5 (hAd5) vaccine for inducing both cellular and humoral immunity against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) – using both an S protein sequence optimized for cell surface expression and a conserved nucleocapsid antigen designed to be transported to the endosomal subcellular compartment.

2 Aug 2020

Children carry 100 times more SARS-CoV-2 virus as adults, study says

As the coronavirus disease (COVID-19) continues to wreak havoc across the globe, it has been thought that children mostly seemed to be spared by severe illness. In the majority of cases, children infected with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) only develop a mild illness, with some tagged as asymptomatic.

31 Jul 2020

Antimalarial drug shows in vitro activity against SARS-CoV-2 and flu viruses

Now, a new study published in the preprint server bioRxiv in July 2020 reports on the antiviral activity of two drugs found in an antimalarial drug currently in phase II trials in South Korea, called Pyramax.

30 Jul 2020

Relatives of SARS-CoV-2 may pose a health threat for years to come

Coronaviruses are zoonotic viruses that jump from animals to humans and cause infection. There are many types of common human coronaviruses, which usually cause mild to moderate upper-respiratory tract illnesses, like the common cold. Most people get infected with one or more of coronavirus types 229E, NL63, OC43, and HKU1 at some point in their lives.

29 Jul 2020

People with SARS-CoV-2 most infectious in days 0-5, no evidence of transmission after day 9

A study conducted by researchers in the UK and Italy suggests that individuals with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are probably at their most infectious during the first week of illness.

29 Jul 2020

Remnants of bird ovaries can be preserved in the fossil record, confirms study

A research team led by Dr. Alida Bailleul from the Institute of Vertebrate Paleontology and Paleoanthropology (IVPP) of the Chinese Academy of Sciences has put one controversy to rest: whether or not remnants of bird ovaries can be preserved in the fossil record.

29 Jul 2020

Basigin/CD147 discarded as an accessory SARS-CoV-2 binding receptor

By using specialized assays customized to detect specific receptor interactions, researchers from the Wellcome Sanger Institute in Cambridge UK find no evidence for direct binding of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike protein to a transmembrane glycoprotein known as basigin.

28 Jul 2020

Experimental vaccine rapidly controls coronavirus in the upper and lower airways of nonhuman primates

Two doses of an experimental vaccine to prevent coronavirus disease 2019 (COVID-19) induced robust immune responses and rapidly controlled the coronavirus in the upper and lower airways of rhesus macaques exposed to SARS-CoV-2, report scientists from the National Institute of Allergy and Infectious Diseases, part of the National Institutes of Health. SARS-CoV-2 is the virus that causes COVID-19.

28 Jul 2020

Moderna coronavirus vaccine candidate moves to phase 3 with 30,000 participants

The world’s most significant coronavirus disease (COVID-19) vaccine study is underway in the United States, with a planned 30,000 volunteers. The phase 3 clinical trial aims to examine the efficacy and safety of the candidate vaccine developed by the National Institutes of Health and Moderna Inc.

28 Jul 2020

Study provides insight into evolution of amyloid-β oligomer with temporary salt crystals

Alzheimer's disease is the leading cause of dementia worldwide and a major cause of disability. Now, researchers at Osaka University and Hokkaido University have shown that repeated precipitation-dissolution events of salt crystals do occur even at low salt concentrations in nanoscales, and that it can accelerate the aggregation of the neurotoxic amyloid-β peptides implicated in its pathogenesis.

27 Jul 2020

National clinical trial to test potential vaccine against SARS-CoV-2

UC San Diego Health and the Altman Clinical and Translational Research Institute, part of UC San Diego School of Medicine, will be sites for an accelerated national clinical trial to assess the efficacy and immunogenicity of a vaccine intended to protect against SARS-CoV-2, the novel coronavirus that causes COVID-19.

25 Jul 2020

Study captures unexpected features of SARS-Cov-2 spike protein

The rod-like spike proteins on the surface of SARS CoV-2 are the tip of the spear of the COVID-19 pandemic.

22 Jul 2020

Pfizer/BioNTech COVID-19 vaccine elicits both neutralizing antibodies and T cell response

A new study published on the preprint server medRxiv by a research group from the U.S. and Germany indicates that a novel BNT162b1 RNA-based vaccine against coronavirus disease (COVID-19) induces functional and proinflammatory T cell responses in almost all participants – marking another landmark achievement for this promising vaccine candidate.

21 Jul 2020

A multi-omics single cell analysis on COVID-19

Now, a new study published on the preprint server medRxiv aims to analyze the immune response over time, using multi-omics in the study of a single cell.

21 Jul 2020

Doctor in Israel reinfected with COVID-19 three months after recovering

There is still a lot to learn about coronavirus disease (COVID-19), which is currently ravaging across the globe. Though scientists are slowly gaining a better understanding of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), it is still unclear if being infected once may provide long-lasting immunity against the novel coronavirus.

20 Jul 2020