Omicron News and Research

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Bivalent COVID-19 boosters offer stronger protection for seniors, Australian study reveals

Study compares the effectiveness of bivalent and monovalent booster vaccines against COVID-19 mortality in individuals aged 65 and older. It finds that bivalent boosters show higher vaccine effectiveness against COVID-19 mortality, particularly for the Omicron variant, compared to monovalent vaccines.

27 Nov 2023

Study reveals Pfizer bivalent COVID-19 booster safer for seniors against stroke risk compared to other vaccines

The comparative hazard of ischemic stroke (IS) in recipients of booster shots.

27 Nov 2023

COVID-19 vaccines offer protection against long-term effects, study suggests

A new study in The BMJ explores how far vaccination averted PCC.

24 Nov 2023

Isolation measures during pandemic drove faster, more transmissible SARS-CoV-2 variants, study reveals

A Nature Communications study finds that isolation practices during the COVID-19 pandemic influenced the evolution of SARS-CoV-2, leading to variants with earlier, higher peak viral loads but shorter infection durations, suggesting a shift towards increased transmissibility.

23 Nov 2023

New study shows bivalent COVID-19 booster increases antibody response in lung cancer patients

Bivalent booster dose enhanced neutralization of Omicron XBB (sub)variants in non-small cell lung cancer (NSCLC) patients.

23 Nov 2023

Research reveals how isolation measures influence SARS-CoV-2's evolutionary trajectory

Researchers used previously reported empirical clinical data analysis and multi-level mathematical modeling to forecast changes in SARS-CoV-2 dynamics during infection and evolution.

23 Nov 2023

Coffee and COVID: Study finds coffee inhibits SARS-CoV-2, offers new dietary defense strategy

Study discovers that coffee, especially its bioactive compounds like chlorogenic acids, can inhibit SARS-CoV-2 entry and reduce ACE2 and TMPRSS2 levels, indicating that coffee intake might be a potential dietary strategy for COVID-19 prevention.

16 Nov 2023

Researchers develop easy-to-calculate scales to predict COVID-19 severity

Factors associated with hospital admissions, ICU stays and mortality in patients who have had SARS-CoV-2 are identified, and clinical prediction rules are developed.

16 Nov 2023

Study reveals coadministered COVID-19 and flu vaccines effective, especially in seniors

The study in JAMA Network Open evaluates the effectiveness of simultaneously administering the Pfizer-BioNTech BNT162b2 BA.4/5 COVID-19 vaccine and seasonal influenza vaccines versus separate administration. Results suggest similar or slightly increased COVID-19 outcomes and lower influenza-related outcomes with coadministration, particularly in those aged 65 and above.

13 Nov 2023

Hospital-acquired COVID-19 mortality drops in Omicron era post-vaccination, reveals Swedish study

In a study published in JAMA Network Open, researchers found that hospital-acquired SARS-CoV-2 infections in Stockholm led to increased 30-day mortality in the pre-vaccination period but showed significantly lower mortality during the Omicron wave post-vaccination. The study underscores the importance of vaccination in reducing mortality risks from nosocomial SARS-CoV-2 infections.

13 Nov 2023

Mucosal vaccine shows lasting defense against SARS-CoV-2 Omicron in primate study

In this groundbreaking study, researchers developed a mucosal adenoviral-vector vaccine, ChAd-SARS-CoV-2-S, which demonstrated sustained and robust immunity against a challenging Omicron variant in nonhuman primates, indicating a promising direction for durable COVID-19 protection strategies. Unlike traditional intramuscular vaccines, this mucosal vaccine elicited a comprehensive immune response, potentially paving the way for more effective and long-lasting COVID-19 vaccines.

9 Nov 2023

Immune imprinting: The crux of waning COVID-19 booster effectiveness against new variants

The study in Nature Microbiology reviews the concept of immune imprinting and its influence on antibody responses to SARS-CoV-2, highlighting challenges for COVID-19 booster vaccination efficacy against emerging variants. Researchers suggest that understanding immune imprinting is crucial for developing vaccines that elicit broad and lasting immune protection.

7 Nov 2023

Omicron variant BA.2.86 spreads faster, but current antivirals hold the line

Researchers discover the BA.2.86 Omicron lineage with higher transmission potential than current dominant strains, yet show that existing antivirals remain effective. Despite its higher infectivity, BA.2.86 exhibits lower pathogenicity in hamsters, indicating decreased replication capacity may lead to less severe infections.

7 Nov 2023

New nasal vaccine for COVID-19 shows promise in animal studies

A team of University of Maryland researchers developed a nasal spray vaccine that delivers the SARS-CoV-2 spike protein into cells of the airway in mice and hamsters, triggering an immune response that significantly reduced infection and spread of COVID-19.

6 Nov 2023

Hospitalization and mortality risks from COVID-19 by age during SARS-CoV-2 Delta and Omicron variants’ predominance

Age-stratified hospitalization and mortality risks from incident SARS-CoV-2 infections.

1 Nov 2023

COVID-19’s long reach: Some physical symptoms can persist up to two years post-diagnosis

Researchers investigated the prevalence rate of physical-type symptoms by the severity of acute COVID-19 beyond two years of diagnosis.

31 Oct 2023

New omicron sublineages surge, but Pfizer-BioNTech bivalent booster retains effectiveness

The efficacy of the bivalent Pfizer-BioNTech COVID-19 messenger ribonucleic acid (mRNA) vaccine BNT162b2 BA.4/5.

30 Oct 2023

Older adults still at highest risk of COVID-19 despite high vaccination rates

About 80% of residents in the Lower Mainland, British Columbia, had been infected with SARS-CoV-2 by July 2023 and were at low risk for severe outcomes, but almost half of the oldest adults remained uninfected and were at highest risk of hospitalization and death due to COVID-19, according to a new study published in CMAJ (Canadian Medical Association Journal) https://www.cmaj.ca/lookup/doi/10.1503/cmaj.230721.

30 Oct 2023

AI-nanopore platform can detect SARS-CoV-2 variants with high accuracy

A rapid, accurate way of testing for COVID-19 infection would be a big step in overcoming the virus' hold over our society.

27 Oct 2023

New AI-nanopore platform could revolutionize COVID-19 testing

A rapid, accurate way of testing for COVID-19 infection would be a big step in overcoming the virus' hold over our society.

26 Oct 2023

Omicron News and Research

Bivalent COVID-19 boosters offer stronger protection for seniors, Australian study reveals

Study reveals Pfizer bivalent COVID-19 booster safer for seniors against stroke risk compared to other vaccines

COVID-19 vaccines offer protection against long-term effects, study suggests

Isolation measures during pandemic drove faster, more transmissible SARS-CoV-2 variants, study reveals

New study shows bivalent COVID-19 booster increases antibody response in lung cancer patients

Research reveals how isolation measures influence SARS-CoV-2's evolutionary trajectory

Coffee and COVID: Study finds coffee inhibits SARS-CoV-2, offers new dietary defense strategy

Researchers develop easy-to-calculate scales to predict COVID-19 severity

Study reveals coadministered COVID-19 and flu vaccines effective, especially in seniors

Hospital-acquired COVID-19 mortality drops in Omicron era post-vaccination, reveals Swedish study

Mucosal vaccine shows lasting defense against SARS-CoV-2 Omicron in primate study

Immune imprinting: The crux of waning COVID-19 booster effectiveness against new variants

Omicron variant BA.2.86 spreads faster, but current antivirals hold the line

New nasal vaccine for COVID-19 shows promise in animal studies

Hospitalization and mortality risks from COVID-19 by age during SARS-CoV-2 Delta and Omicron variants’ predominance

COVID-19’s long reach: Some physical symptoms can persist up to two years post-diagnosis

New omicron sublineages surge, but Pfizer-BioNTech bivalent booster retains effectiveness

Older adults still at highest risk of COVID-19 despite high vaccination rates

AI-nanopore platform can detect SARS-CoV-2 variants with high accuracy

New AI-nanopore platform could revolutionize COVID-19 testing

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