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SARS-CoV 2 Omicron prevalent in vaccine breakthrough cases in Bahia, Brazil

In a recent study posted to the medRxiv* pre-print server, researchers performed genomic monitoring to estimate the magnitude and range of the different severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern (VOCs) in SARS-CoV-2 reinfection cases among fully vaccinated individuals in Salvador, Bahia, Brazil.

23 Feb 2022

Circulating miR-155 may predict chances of survival in hospitalized COVID-19 patients

Scientists from Israel have recently estimated the levels of circulating microRNAs (miRNAs) in hospitalized coronavirus disease 2019 (COVID-19) patients with the aim of identifying prognostic biomarkers for disease severity. They have identified miR-155, an important regulatory molecule in the immune system, as a potential biomarker to predict COVID-19 severity and mortality.

22 Feb 2022

Breath tests can help detect traces of SARS-CoV-2 virus

Traces of the SARS-CoV-2 coronavirus that causes COVID-19 can be detected in microscopically small fluid droplets exhaled during a very short time span.

22 Feb 2022

Study explores the decline in viral load and immune response in COVID-19 patients

Researchers described the changes in viral ribonucleic acid the decline in viral load, and the immune response of SARS-CoV-2-infected patients, in a new preprint study.

22 Feb 2022

SARS-CoV-2 Omicron variant rapidly takes over Delta viral strain in Norwegian households

Researchers compared the secondary attack rates SARS-CoV-2 Omicron and Delta variants of concern in Norwegian households.

22 Feb 2022

Severity of SARS-CoV-2 infections with Omicron BA.2 variant relative to the BA.1 variant in South Africa

Researchers estimated the clinical severity of the SARS-CoV-2 Omicron BA.2 sublineage relative to the BA.1 variant in South Africa.

22 Feb 2022

REGEN-COV antibody combination to prevent COVID-19 severity

A new study assessed the effectiveness of REGEN-COV, a combination of casirivimab and imdevimab monoclonal antibodies, in the prevention of COVID-19 disease severity.

22 Feb 2022

SARS-CoV-2 reinfection risk in the population of the Abruzzo Region of Italy

Researchers evaluated the incidences of SARS-CoV-2 reinfections, hospitalizations, and death among the previously infected population of the Abruzzo region in Italy.

22 Feb 2022

Studies continue to prove ivermectin for COVID-19 treatment ineffectual

Researchers from hospitals around Malaysia have been looking into the efficacy of the controversial drug ivermectin as a possible COVID-19 treatment.

22 Feb 2022

Widely utilized SARS-CoV-2 rapid antigen detection tests continue to perform as expected despite Omicron mutations

A recent study evaluated the performance of three at-home COVID-19 rapid antigen tests commonly used in the US against the SARS-CoV-2 Omicron variant.

22 Feb 2022

Study suggests anti-SARS-CoV-2 antibodies may persist lifelong post-infection

Researchers attempted to delineate the duration and stability of anti-SARS-CoV-2 antibodies in patients who had recovered from the COVID-19 infection.

22 Feb 2022

SARS CoV-2 in deer from Pennsylvania sampled during fall and winter 2021

Researchers examined whether SARS-CoV-2-infected white-tailed deer could be the new animal reservoir with the potential to spillback new SARS-CoV-2 variants into humans.

22 Feb 2022

An abundance of SARS-CoV-2-like viruses in hunted wild animals traded in China

New research published in the journal Cell assesses the viromes of 18 different species of game animals across China to predict potential pathogens similar to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that could infect human populations.

22 Feb 2022

Research shows the impact of accessory genes deletion in SARS-CoV-2 evolution

In a recent study published in the journal PLoS ONE, researchers investigated the effect of genetic variability based on accessory gene deletions on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) transmission and the clinical severity of coronavirus disease 2019 (COVID-19).

22 Feb 2022

Monitoring rise of SARS-CoV-2 variants in wastewater using genome sequencing

Researchers conduct genomic wastewater surveillance of SARS-CoV-2 following the emergence of the Alpha and Delta variants in the United Kingdom.

21 Feb 2022

SARS-CoV-2 Omicron variant prompts system sciences and precision medicine

In a new review study, researchers aimed to describe the emergence of the Omicron variant, its structure, its impact on health and health systems, and the challenges that can be expected due to this variant.

21 Feb 2022

Comparative transmission study of SARS-CoV-2 Omicron and Delta variant in England

Researchers performed an epidemiological cohort study to assess differences in transmission of the SARS-CoV-2 Omicron and Delta variants in England.

21 Feb 2022

Full schedule of CoronaVac vaccine shown to be highly effective in children

A recent study on vaccine effectiveness showed that a complete primary immunization with CoronaVac effectively protects against severe coronavirus disease 2019 (COVID-19) for children and adolescents between 6 and 16 years of age – consistent with the results from phase 2 clinical trials. The paper is currently available on the Preprints with The Lancet* server while it undergoes peer review.

20 Feb 2022

Four times as many children hospitalized during Omicron COVID wave compared to Delta

The emergence of the SARS-CoV-2 Delta and Omicron variants caused severe disease and hospitalizations among children and adolescents.

20 Feb 2022

Study characterizes COVID-19 vaccine effectiveness at longer dose intervals

Researchers conducted a prospective cohort study to assess the level and durability of protection offered by two doses of COVID-19 vaccine against SARS-CoV-2 infection in participants with no history of a previous infection.

18 Feb 2022

Polymerase News and Research

SARS-CoV 2 Omicron prevalent in vaccine breakthrough cases in Bahia, Brazil

Circulating miR-155 may predict chances of survival in hospitalized COVID-19 patients

Breath tests can help detect traces of SARS-CoV-2 virus

Study explores the decline in viral load and immune response in COVID-19 patients

SARS-CoV-2 Omicron variant rapidly takes over Delta viral strain in Norwegian households

Severity of SARS-CoV-2 infections with Omicron BA.2 variant relative to the BA.1 variant in South Africa

REGEN-COV antibody combination to prevent COVID-19 severity

SARS-CoV-2 reinfection risk in the population of the Abruzzo Region of Italy

Studies continue to prove ivermectin for COVID-19 treatment ineffectual

Widely utilized SARS-CoV-2 rapid antigen detection tests continue to perform as expected despite Omicron mutations

Study suggests anti-SARS-CoV-2 antibodies may persist lifelong post-infection

SARS CoV-2 in deer from Pennsylvania sampled during fall and winter 2021

An abundance of SARS-CoV-2-like viruses in hunted wild animals traded in China

Research shows the impact of accessory genes deletion in SARS-CoV-2 evolution

Monitoring rise of SARS-CoV-2 variants in wastewater using genome sequencing

SARS-CoV-2 Omicron variant prompts system sciences and precision medicine

Comparative transmission study of SARS-CoV-2 Omicron and Delta variant in England

Full schedule of CoronaVac vaccine shown to be highly effective in children

Four times as many children hospitalized during Omicron COVID wave compared to Delta

Study characterizes COVID-19 vaccine effectiveness at longer dose intervals

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