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Occupational risk of COVID-19 in 3.5 million Norwegians

A team of researchers at the Norwegian Institute of Public Health have sought to determine which among workers and employees have higher odds of COVID-19 infection in the first and second waves of the outbreak.

5 Nov 2020

Correlations found between 'long-COVID' patients and preexisting health conditions

Researchers from the nference (a biotech information firm) in Cambridge, MA, USA, the Mayo Clinic in Rochester, MN, USA, and nference Labs based in Bengaluru, India, recently performed a retrospective analysis of 266 COVID-19 patients.

4 Nov 2020

SARS-CoV-2 attack rates among household contacts higher than among non-household contacts

Now, a team of researchers at the National Centre for Infectious Diseases in Singapore aimed to determine the transmission risk factors of SARS-CoV-2 among household and non-household contacts.

3 Nov 2020

Adaptive evolution of human coronaviruses may necessitate frequent reformulation of vaccines

Researchers from the Vaccine and Infectious Disease Division at the Fred Hutchinson Cancer Research Center, USA, have revealed that adaptive evolution in the antigenic regions facilitates seasonal coronaviruses to escape the host immune responses and to cause recurrent infections.

3 Nov 2020

Remdesivir metabolite GS-441524 inhibits SARS CoV-2 in mouse model, finds study

This new study titled, "Remdesivir Metabolite GS-441524 Efficiently Inhibits SARS-CoV-2 Infection in Mouse Model," was released online as a preprint on the bioRxiv* server, prior to undergoing the peer-review process.

2 Nov 2020

Research finds detectable but low-level SARS-CoV-2 contamination on public surfaces

A team of researchers at Tufts University found that 8.3 percent of surface samples tested positive for SARS-CoV-2, including crosswalk buttons, trash can handles, and door handles of essential business entrances such as grocery stores, banks, gas stations, and liquor stores.

2 Nov 2020

Research shows how remdesivir inhibits SARS-CoV-2 replication

In a recent bioRxiv preprint, a research team from Germany, Goran Kokic et al. study the molecular mechanism of remdesivir-induced stalling of RdRp - using synthetic RNA chemistry, biochemistry, and cryo-electron microscopy.

2 Nov 2020

Study analyzes the viral load on Halloween candy handled by COVID-19 patients

Like a specter, the question looms: How risky is trick-or-treating with SARS-Cov-2, the virus that causes COVID-19, in the air -- and possibly on the candy?

30 Oct 2020

Study examines link between SARS-CoV-2 genomic load and COVID-19 patient outcomes

A new study published online in the Annals of the American Thoracic Society examines whether the amount of RNA, or genomic load, of SARS-CoV-2 detected in swab tests of patients being admitted to the hospital with viral pneumonia is associated with more severe COVID-19.

30 Oct 2020

SARS-CoV-2 load varies widely in the community and over time

A new study published on the preprint server medRxiv* in October 2020 reports that there are large differences in the viral load in different communities. Moreover, the authors say that the cycle threshold values required to obtain a positive result for viral RNA by polymerase chain reaction may provide an early warning of an outbreak.

29 Oct 2020

App-based surveillance system enables early detection of COVID-19 hotspots

Researchers in the UK, United States, and Sweden have used large-scale self-reported app data to estimate coronavirus disease 2019 (COVID-19) incidence, prevalence, and effective reproductive number in England.

29 Oct 2020

Mouth may be primary route of SARS-CoV-2 infection and transmission

A new study published on the preprint server medRxiv in October 2020 shows that the virus also multiplies robustly in the oral cavity, indicating that saliva plays a role in viral transmission.

29 Oct 2020

Structure and mechanisms of ribosomal frameshifting during SARS-CoV-2 translation

The structure of a 3’ stimulatory pseudoknot in the viral genome or by itself has been proposed recently. Researchers report the structure and mechanisms of mammalian ribosomes during translation of the -1 frameshifting of the SARS-CoV-2 viral genome in a new study published on the preprint server bioRxiv.

28 Oct 2020

Rapid CD169 assay for COVID-19 screening

Researchers in France have conducted a study demonstrating the sensitivity of a rapid flow cytometry assay that could be used to screen for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection.

27 Oct 2020

Study: SARS-CoV-2 virus adopts new strategy to ensure its replication, spread

Since COVID-19 began its menacing march across Wuhan, China, in December 2019, and then across the world, the SARS-CoV-2 virus has taken a "whatever works" strategy to ensure its replication and spread.

27 Oct 2020

COVID-19 antibiotic risk factors

Now, a team of researchers at the University of Rochester Medical Center aimed to determine antibiotic prescribing rates and risk factors for antibiotic prescribing in hospitalized patients. They found that almost one-third of patients received more than one course of antibiotics.

27 Oct 2020

Phase 1 trial results of gorilla adenovirus vaccine for COVID-19

A recent study published on the preprint server bioRxiv* in October 2020 reports the development of a novel vaccine based on a simian adenoviral vector obtained from a group C gorilla isolate called GRAd32. This could help speed up vaccine development.

26 Oct 2020

Population-based COVID-19 prevalence surveys in Europe and Americas show risk of bias

A team of researchers from the Federal University of Health Sciences of Porto Alegre and the Federal University of Rio Grande do Sul performed a systematic review to assess these population-based COVID-19 prevalence surveys' reliability and biases qualitatively. Their study is published on the preprint server medRxiv.

26 Oct 2020

Researchers present COVID RdRp structure at 2.5A

In a recent bioRxiv* preprint publication, Christopher J. Russo et al. report the structure of favipiravir ribonucleoside triphosphate (favipiravir-RTP) in complex with the SARS-CoV-2 RNA-dependent RNA polymerase (RdRp) bound to a template: primer RNA duplex. They determine the structure by electron cryomicroscopy (cryoEM) to a resolution of 2.5 Å.

26 Oct 2020

New inhibitor of SARS-CoV-2 RNA translation

As the search for effective severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) inhibitors continues, a recent study by Yale University School of Medicine researchers published on the preprint server bioRxiv in October 2020 reports the inhibitory effect of the drug merofloxacin on frameshifting during SARS-CoV-2 replication.

26 Oct 2020