Disease/Infection News

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Glycans "lock and load" the SARS-CoV-2 spike protein for infection

A new study by scientists from the University of California San Diego, USA and Maynooth University, Ireland and published on the preprint server bioRxiv* in June 2020 reports preliminary results showing that the spike protein of the SARS-CoV-2, as well as its glycan coat, has “hitherto unseen functional and structural” properties. These may be useful in designing novel therapeutics to target this molecule.

14 Jun 2020

Hydroxychloroquine ineffective in animal SARS-CoV-2 infection

A new study by scientists from the U.S and U.K. and published on the preprint server bioRxiv in June 2020 reports that there is no evidence of efficacy for the drug hydroxychloroquine (HCQ) against infection with SARS-CoV-2 in hamsters or macaque models. This finding does not support the current widespread prophylactic and therapeutic use of HCQ in COVID-19.

14 Jun 2020

Steroidal drugs subvert SARS-CoV-2 interaction with ACE2 receptors

A new study by Italian researchers and published online on the preprint server bioRxiv* in June 2020 reports the ability of several existing steroidal drugs to reduce the binding of the SARS-CoV-2 to the ACE2 receptor. This could help define newer strategies using viral entry blockers to reduce viral load.

14 Jun 2020

Remdesivir prevents replication of SARS-CoV-2 in human intestinal organoids

A new German study published on the preprint server bioRxiv* in June 2020 shows that the drug remdesivir can reduce the replication of SARS-CoV-2 in human intestinal organoids.

14 Jun 2020

Factors that determine COVID-19 mortality

A potentially important new study by MIT researchers and published on the preprint server medRxiv* in June 2020 shows that COVID-19 death rates in U.S. states correlate with several factors like commuting to work, temperatures, and geographical location, but not with ICU beds, obesity or poverty. This work, if validated, could help identify the actual contributing factors that shape mortality rates across the USA.

14 Jun 2020

Effect of human genes on severity and infectivity of SARS-CoV-2

Now, a new paper published on the preprint server medRxiv* reports the results of an analysis of the association between the genetic variants in the patients and the clinical progression of the disease. The study included 332 patients hospitalized with COVID-19 in a single-center, with widely varying laboratory and clinical features. There were 25, 12, and 17 patients with asymptomatic, mild, and critical disease.

14 Jun 2020

An entire trimeric S-protein of SARS-CoV-2 is necessary for protective immune response

Researchers from Seattle Children's Research Institute and the University of Washington described a high-throughput and rapid technique to quantify circulating levels of functional antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), suggesting that the entire viral spike protein should be used to characterize the immune response. Their paper is currently available on the medRxiv* preprint server.

14 Jun 2020

Early respiratory distress syndrome caused by SARS-CoV-2 in a newborn

A recent case report from the researchers at the University of São Paulo, published in the journal CLINICS, shows how newborns can also be infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and develop serious symptoms, even though the most likely route of infection in such cases is still not completely clear.

14 Jun 2020

Early neutralizing response to SARS-CoV-2 dominated by IgA antibodies

Researchers from France and the U.S. demonstrated how severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection could induce an early and vigorous virus-specific IgA response that paves the way for the production of SARS-CoV-2 IgG antibodies, with even better neutralizing properties. Their paper is currently available on the medRxiv preprint server.

14 Jun 2020

Cannabis plant may harbor SARS-CoV-2 for at least a week

Researchers at the Medicinal Genomics Corporation have warned that cannabis flowers exposed to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) may harbor the virus for at least seven days.

14 Jun 2020

NIAID and Moderna scientists describe SARS-CoV-2 vaccine development

Researchers at the National Institute of Allergy and Infectious Diseases and Moderna Inc., have described the potent neutralizing effects of a candidate vaccine for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that is currently being tested in a phase II trial.

14 Jun 2020

New test can detect the RNA of SARS-CoV-2 in patient samples in 30 minutes

A new diagnostic test can detect the RNA of SARS-CoV-2, the virus that causes COVID-19, in urine, blood, saliva or mouth swab samples in just 30 to 45 minutes, according to a new study published June 12, 2020 in the open-access journal PLOS ONE by Laura Lamb of the Beaumont Health System, Michigan, USA, and colleagues.

14 Jun 2020

Using a face mask reduces the spread of COVID-19 infections

A study by a team of researchers led by a Texas A&M University professor has found that not wearing a face mask dramatically increases a person's chances of being infected by the COVID-19 virus.

14 Jun 2020

Hydroxychloroquine shows no antiviral effect on SARS-Cov-2 in non-human primate models

A study on the effects of hydroxychloroquinei n macaques infected with the SARS-CoV-2 virus, , used alone or in combination with azithromycin, have been pre-published on Research Square, after their submission to Nature.

12 Jun 2020

JRC creates a database of COVID-19 diagnostic devices and test methods

As part of EU efforts to provide guidance on the use of coronavirus tests, the JRC has created a database of COVID-19 in vitro diagnostic devices and test methods that gathers information on available tests in one place.

12 Jun 2020

China's COVID-19 interventions caused abrupt decline in tropospheric nitrogen dioxide

Pandemics and the Environment: China's COVID-19 Interventions Reduced Nitrogen Dioxide Levels A new Special Collection of Science Advances papers will delve into how pandemics such as COVID-19 affect - and are affected by - global environmental conditions, underscoring the interconnectedness of global processes.

12 Jun 2020

Asymptomatic infections may account for up to 45% of all COVID-19 cases

An extraordinary percentage of people infected by the virus behind the ongoing deadly COVID-19 pandemic never show symptoms of the disease, according to the results of a Scripps Research analysis of public datasets on asymptomatic infections.

12 Jun 2020

COVID-19 may trigger the onset of diabetes in healthy people

Emerging evidence suggests that COVID-19 may actually trigger the onset of diabetes in healthy people and also cause severe complications of pre-existing diabetes.

12 Jun 2020

Study finds self-swabbing tests for COVID-19 to be accurate and safe

Test samples collected by people who swabbed their own nasal passages yielded results for the COVID-19 virus that were as accurate as samples collected by a health care worker, according to a small study by researchers at the Stanford University School of Medicine.

12 Jun 2020

Case series: COVID-19 in teriflunomide-treated patients with MS

During the COVID-19 pandemic, patients with multiple sclerosis (MS) and their clinicians have had questions and concerns about whether immunotherapies for MS could influence risk for infection or lead to an unfavorable outcome.

12 Jun 2020