Respiratory News and Research

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Nasal swab tests miss low viral SARS-CoV-2

A recent study by researchers from Beth Israel Deaconess Medical Center and Harvard Medical School, currently available on the preprint server medRxiv, demonstrates how nasal swab samples reliably detect patients infected with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that present with high viral loads, but may miss many patients with lower viral loads – questioning their role as a sole specimen for diagnostic purposes.

15 Jun 2020

American Thoracic Society calls for moratorium on tear gas use during COVID-19 pandemic

The American Thoracic Society calls for a moratorium on the use of tear gas and other chemical agents deployed by law enforcement against protestors participating in demonstrations, including current campaigns sparked by the death of George Floyd.

15 Jun 2020

Chimeric reference standards for validating controls in SARS-CoV-2 tests

A preliminary study by researchers from the Garvan Institute of Medical Research and the University of New South Wales and published on the preprint server bioRxiv in June 2020 reports the use of chimeric design to produced reference standards for diagnostic tests. This could allow a highly flexible approach to the development of different genetic features in the same test, even for organisms that are not directly related.

15 Jun 2020

Tuberculosis and polio vaccines may offer temporary protection against SARS-CoV-2

As the world grapples with the coronavirus disease (COVID-19) pandemic, scientists race to develop an effective vaccine to protect against the deadly SARS-CoV-2 virus. While potential vaccines are still being developed and tested, researchers propose that existing vaccines could give the immune system a temporary boost to ward off infection.

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

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

Scientists develop rapid bedside test for diagnosing nRDS in premature babies

Scientists at the University of Southampton's Zepler Institute for Photonics and Nanoelectronics are developing a rapid bedside test for diagnosing neonatal Respiratory Distress Syndrome (nRDS) in premature babies.

12 Jun 2020

Reusable elastomeric respirator masks offer a cost-effective option for health care workers

A cost-effective strategy for health care systems to offset N95 mask shortages due to the Coronavirus Disease 2019 (COVID-19) pandemic is to switch to reusable elastomeric respirator masks, according to new study results.

12 Jun 2020

COVID-19 outbreak likely to worsen in Brazil, says GlobalData

Recently, Brazil has steadily climbed the chart of the top 10 countries with the highest total of COVID19 cases, now ranking number two just behind the US.

12 Jun 2020

Drug-like molecules offer a promising treatment for COVID-19

A team of researchers at the University of Georgia has successfully demonstrated that a set of drug-like small molecules can block the activity of a key SARS-CoV-2 protein - providing a promising path for new COVID-19 therapeutics.

12 Jun 2020

Facemasks will prevent COVID-19 in the "new normal"

The coronavirus disease (COVID-19) has left many countries grappling with high infection rates. The novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has negatively impacted societies and economies. Now though, many countries are starting to lift restrictions to prepare for a "new normal."

12 Jun 2020

Synthetic nanobodies potent neutralizers for SARS-CoV-2

Researchers at the Chinese Academy of Sciences report the generation of potent synthetic nanobodies that selectively and efficiently neutralize severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pseudovirus.

11 Jun 2020