Dysbiosis in gut microbiota may cause severe secondary infection in COVID-19 patients

An interesting study led by scientists in the U.S. has recently revealed that the microbial community in the gut is directly affected by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and that virus-mediated gut microbiome dysbiosis may cause severe secondary infections in coronavirus disease 2019 (COVID-19) patients. The study is currently available on the bioRxiv* […]

Is the SARS-CoV-2 delta variant threatening vaccine efficacy?

A new study in the UK, by researchers at Imperial College London, The Francis Crick Institute and the University of Glasgow, explores the loss of coronavirus disease 2019 (COVID-19) vaccine efficacy against the virus behind the current pandemic caused by the emergence of newer variants that have undergone mutational escape. The paper, available on the […]

Resting heart rate variability predicts emotional resilience during COVID-19 restrictions

An interesting new study available as a preprint on the medRxiv* server suggests that vagally-mediated heart rate variability (vmHRV) is a physiological marker of resilience to stress by indicating how well an individual handles the emotions when faced with changes in the surroundings. Study: Safe in my heart: resting heart rate variability longitudinally predicts emotion […]

Researchers review the origins of SARS-CoV-2 and present treatment methods

A million more questions arise for every answer we have against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Where did it come from? And will it ever go away? A recent article published in Frontiers in Cellular and Infection Microbiology reviews what scientists currently know about the origin, SARS-CoV-2 structure, and potential treatments against this […]

Fusogenicity and resistance of SARS-CoV-2 B.1.1.7 and B.1.351 compared to D614G

Since the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was first reported at the end of 2019, the virus has undergone numerous mutations, with the emergence of multiple variants. Some of these have shown increased infectivity, while others are resistant to the antibodies elicited by the parental strain or the vaccine. These are called variants […]

Does SARS-CoV-2 show seasonal variation in transmission in temperate countries?

The coronavirus disease 2019 (COVID-19) pandemic – caused by the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) – was declared in March 2020, two months after the initial recognition of novel pneumonia-like symptoms in a group of patients in Wuhan, China. Since then, it has spread to over 192 countries and territories, causing well […]

A closer look at how COVID-19 damages human lungs

A recent study conducted at the United States Department of Energy’s (DOE) Brookhaven National Laboratory provides the first atomic-level detailed model of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) envelope protein when bound to human proteins within the lungs. The study was recently published in Nature Communications. Study: Structural basis for SARS-CoV-2 envelope protein […]