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Omicron variant of SARS-CoV-2 manifests striking antibody evasion

A new study from Columbia researchers, in collaboration with scientists at the University of Hong Kong, adds more evidence that the omicron variant can evade the immune protection conferred by vaccines and natural infection and suggests the need for new vaccines and treatments that anticipate how the virus may soon evolve.

24 Dec 2021

Alpha variant of SARS-CoV-2 evolved mutations to evade the immune system

The Alpha variant of SARS-CoV-2-;the first "variant of concern"-;evolved mutations that allowed it to more efficiently suppress the immune system's early response to infection, according to a new study led by scientists at the University of California, San Francisco's Quantitative Biosciences Institute and University College London.

24 Dec 2021

Ad5-nCoV vaccine safe and effective against symptomatic, severe COVID-19, trials shows

One dose of Ad5-nCoV (Convidecia), a COVID-19 vaccine developed in China, is 57.5% effective against symptomatic COVID-19 and 91.7% effective against severe COVID-19 disease beginning 28 days postvaccination, according to a phase 3 randomized controlled trial published in The Lancet.

23 Dec 2021

X-ray imaging of cardiac tissue reveals the impact of Covid-19 on the heart

An interdisciplinary research team from the University of Göttingen and Hannover Medical School (MHH) has detected significant changes in the heart muscle tissue of people who died from Covid-19.

23 Dec 2021

Researchers identify a key influenza epitope that can targeted for developing universal vaccines

A team led by scientists at Weill Cornell Medicine, Scripps Research and the University of Chicago has identified an important site of vulnerability on influenza viruses—a site that future influenza vaccines and antibody therapies should be able to target to prevent or treat infections by a broad set of influenza strains.

23 Dec 2021

CDC investigates Listeria outbreaks linked to packaged salads

CDC is currently investigating two separate Listeria outbreaks, both of which are linked to packaged salads. One outbreak is linked to packaged salads produced by Fresh Express.

23 Dec 2021

Study may lead to effective strategies for rehabilitation of children with arthrogryposis

HSE academics joined researchers from the Turner Scientific Research Institute for Children's Orthopaedics to study how the brains of children with arthrogryposis control elbow flexion after muscle transplantation.

23 Dec 2021

Coinfection of SARS-CoV-2 and human rhinovirus associated with more severe health outcomes

Researchers discuss the incidence and effect of coinfections with SARS-CoV-2 and human rhinovirus.

23 Dec 2021

Fiber-rich diet may help some melanoma patients to respond to immunotherapy

A diet rich in fiber may help some people being treated for melanoma respond to immunotherapy treatment by influencing the gut microbiome, according to a new study led by researchers at the Center for Cancer Research at the National Cancer Institute, part of the National Institutes of Health, and the University of Texas MD Anderson Cancer Center.

23 Dec 2021

Mapping access to HIV care

In this interview, we speak to Professor Diego Cuadros about his latest research in which he mapped individuals' access to HIV care in Africa.

23 Dec 2021

The transmission dynamics of SARS-CoV2 Omicron variant

In a recent study posted to the medRxiv* preprint server, researchers developed a coronavirus disease (COVID-19) model-inference system in South Africa to determine transmission dynamics and immune evasion associated with severe acute respiratory syndrome-associated coronavirus disease (SARS-CoV-2) Omicron variant.

22 Dec 2021

Scientists develop methods to quantify the transmissibility of new COVID-19 variants

As the discovery of the new omicron variant illustrates, new COVID-19 variants will continue to regularly emerge.

22 Dec 2021

Researchers receive NIH grants to develop new treatments for neglected tropical diseases

Researchers at Washington University School of Medicine in St. Louis have received two grants from the National Institutes of Health totaling more than $5.5 million to develop new treatments for two types of devastating parasitic infections common in sub-Saharan Africa and Central and South America: river blindness and intestinal worm infections.

22 Dec 2021

Role of novel SARS-CoV-2-derived svRNAs and the involvement of tRF in COVID-19

A new study revealed new long sv-COV-2 using T4 PNK pretreatment and qRT-PCR and also identified piRNAs and tRFs as the most abundant sncRNAs in COVID-19 positive samples.

22 Dec 2021

Researchers identify novel cancer markers in patients with aggressive prostate cancer

Prostate cancer is the most commonly diagnosed cancer in men and is among the top five causes of cancer-related death. In most cases, prostate cancer can be successfully treated but there is a group of patients who suffer an aggressive course and often fatal outcome.

22 Dec 2021

Researchers evaluate hemodynamic factors related to aneurysm formation

Researchers in Japan have evaluated hemodynamic factors that may help identify sites where aneurysms are likely to form. Detailed findings of this study are described in the article "Computational fluid dynamic analysis of the initiation of cerebral aneurysms" by Soichiro Fujimura et al., published today in the Journal of Neurosurgery.

21 Dec 2021