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Naturally selected mutations of SARS-CoV-2 easily duplicated in vitro

In a recent and timely paper, currently available on the bioRxiv preprint server, researchers from Israel and France demonstrated how in vitro evolution of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) receptor-binding domain (RBD) follows contagious mutation spread – but can also generate an efficient infection inhibitor.

10 Jan 2021

Researchers pinpoint spike protein regions as targets for passive and active COVID-19 vaccines

Researchers at Stanford University School of Medicine have identified regions of the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that have relatively few mutations and might therefore serve as important targets for prophylactic agents against coronavirus disease 2019 (COVID-19).

10 Jan 2021

Modeling study sheds light on SARS-CoV-2 genome packaging

Researchers at the University of North Carolina at Chapel Hill have conducted a study exploring how the spatial patterning of certain genomic RNA regions in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) promotes compaction, packaging, and cyclization of the viral genome.

10 Jan 2021

New test detects SARS-CoV-2 in less than 5 mins

A fast and accurate virus detection strategy is very crucial to reduce the rate of transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the pathogen responsible for COVID-19. The global scientific research community responded to this unprecedented demand in diagnostic testing by developing several detection platforms, the most sensitive of which detect the viral RNA.

10 Jan 2021

Single-dose nanoparticle vaccine for SARS-CoV-2

Before the pandemic, the lab of Stanford University biochemist Peter S. Kim focused on developing vaccines for HIV, Ebola and pandemic influenza.

8 Jan 2021

FDA alerts health care providers and clinical laboratory staff about SARS-CoV-2 viral mutation

The U.S. Food and Drug Administration is alerting clinical laboratory staff and health care providers that the FDA is monitoring the potential impact of viral mutations, including an emerging variant from the United Kingdom known as the B.1.1.7 variant, on authorized SARS-CoV-2 molecular tests, and that false negative results can occur with any molecular test for the detection of SARS-CoV-2 if a mutation occurs in the part of the virus's genome assessed by that test.

8 Jan 2021

Researchers create first usable computational model of entire SARS-COV-2 virus

Researchers at the University of Chicago have created the first usable computational model of the entire virus responsible for COVID-19-;and they are making this model widely available to help advance research during the pandemic.

8 Jan 2021

Single-dose nanoparticle COVID-19 vaccine elicits virus-neutralizing antibody response in mice

Across the world, health care workers and high-risk groups are beginning to receive COVID-19 vaccines, offering hope for a return to normalcy amidst the pandemic.

8 Jan 2021

Using genomic analysis to map the introduction of SARS-CoV-2 virus in the UK

The SARS-CoV-2 virus was introduced to the United Kingdom well over 1,000 times in early 2020, according to researchers who analyzed more than 50,000 viral sequences from the first wave of the COVID-19 pandemic in the UK.

8 Jan 2021

Advanced nanomaterial-based biosensing platform rapidly detects COVID-19 antibodies

Researchers at Carnegie Mellon University report findings on an advanced nanomaterial-based biosensing platform that detects, within seconds, antibodies specific to SARS-CoV-2, the virus responsible for the COVID-19 pandemic.

8 Jan 2021

How do SARS-CoV-2 antibodies change over time in recovered patients?

Researchers studied convalescent plasma from recovered coronavirus disease 2019 (COVID-19) patients, with samples collected up to 34 weeks after recovery. They found IgG antibodies gradually declined with a median half-life of about 60 days.

8 Jan 2021

Airborne transmission of SARS-CoV-2 is possible in enclosed environments, a study finds

A team of scientists recently revealed that inside a closed room, the chance of airborne SARS-CoV-2 infection directly depends on the number of symptomatic COVID-19 patients in the room and the duration of exposure.

8 Jan 2021

Researchers develop a low-cost, saliva-optimized RT-LAMP assay for faster detection of SARS-CoV-2

SARS-CoV-2 pandemic has highlighted the shortcomings in emergency response globally and has driven a massive demand for in vitro diagnostic testing technologies. In order to address these issues, researchers from the US recently used the new pH dye LAMPShade Violet (LSV) in RT-LAMP. LSV has better visual contrast between high and low pH and a stronger inflection point, both of which enable easy interpretation of results and reduces ambiguity.

8 Jan 2021

Study: Initial COVID-19 severity is not linked to later poor respiratory problems

A new study published online in the Annals of the American Thoracic Society examines the recovery of lung function and overall wellness in individuals who had varying degrees of COVID-19 severity.

8 Jan 2021

Patients taking immunosuppressive drugs did not have worse COVID-19 outcomes

People taking immunosuppressive drugs to prevent organ transplant rejection or to treat inflammatory or autoimmune diseases do not fare worse than others on average when they are hospitalized with COVID-19, according to a study from researchers at the Johns Hopkins Bloomberg School of Public Health.

7 Jan 2021

Link between fever, diarrhea, severe COVID-19, and persistent anti-SARS-CoV-2 antibodies

A new preprint research paper appearing on the medRxiv server describes a link between the persistence of neutralizing antibodies against the virus, disease severity, and specific COVID-19 symptoms.

7 Jan 2021

Gut and oral microbiomes predict COVID-19 severity

One question that continues to remain unanswered during the ongoing coronavirus disease 2019 (COVID-19) pandemic has been why is there a distinctive hit-and-miss pattern when it comes to severe disease? An interesting new study that appears on the medRxiv* preprint server pinpoints one highly relevant risk factor: the state of the oral and gut microbiomes.

7 Jan 2021

High-affinity SARS-CoV-2 RBD drives mutation spread, forms basis of new COVID-19 inhibitor

Now, an intriguing recent study appeared on the bioRxiv * preprint server describes the use of in vitro evolution to elicit affinity maturation of the viral receptor-binding domain (RBD) of the spike protein to bind the host cell angiotensin-converting enzyme 2 (ACE2) with greater affinity.

7 Jan 2021

Potential role of chitinase 3-like-1 in severity of COVID-19

Now, an intriguing preprint research paper on the bioRxiv server reports the identification of an enzyme called chitinase 3-like-1 (CHI3L1) that mediates this age-dependent impact of the virus and could serve as a powerful therapeutic approach in mitigating the severity of COVID-19 in this high-risk group.

7 Jan 2021

Antibodies and inflammatory markers are pervasive in colostrum of SARS-CoV-2 infected women

A recent study, currently available on the medRxiv* preprint server, is among the first to reveal the presence of antibodies against the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in colostrum and to demonstrate elevated cytokine levels in colostrum from women exposed to the virus.

7 Jan 2021

SARS News and Research

Naturally selected mutations of SARS-CoV-2 easily duplicated in vitro

Researchers pinpoint spike protein regions as targets for passive and active COVID-19 vaccines

Modeling study sheds light on SARS-CoV-2 genome packaging

New test detects SARS-CoV-2 in less than 5 mins

Single-dose nanoparticle vaccine for SARS-CoV-2

FDA alerts health care providers and clinical laboratory staff about SARS-CoV-2 viral mutation

Researchers create first usable computational model of entire SARS-COV-2 virus

Single-dose nanoparticle COVID-19 vaccine elicits virus-neutralizing antibody response in mice

Using genomic analysis to map the introduction of SARS-CoV-2 virus in the UK

Advanced nanomaterial-based biosensing platform rapidly detects COVID-19 antibodies

How do SARS-CoV-2 antibodies change over time in recovered patients?

Airborne transmission of SARS-CoV-2 is possible in enclosed environments, a study finds

Researchers develop a low-cost, saliva-optimized RT-LAMP assay for faster detection of SARS-CoV-2

Study: Initial COVID-19 severity is not linked to later poor respiratory problems

Patients taking immunosuppressive drugs did not have worse COVID-19 outcomes

Link between fever, diarrhea, severe COVID-19, and persistent anti-SARS-CoV-2 antibodies

Gut and oral microbiomes predict COVID-19 severity

High-affinity SARS-CoV-2 RBD drives mutation spread, forms basis of new COVID-19 inhibitor

Potential role of chitinase 3-like-1 in severity of COVID-19

Antibodies and inflammatory markers are pervasive in colostrum of SARS-CoV-2 infected women

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