Omicron News and Research

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Intranasal vaccine represents an effective broad-spectrum COVID-19 vaccine strategy

Researchers evaluated the efficacy of dNS1-RBD, a novel intranasal COVID-19 vaccine.

6 Oct 2022

$The immune responses and safety of fractional third-doses of heterologous COVID-19 vaccines after CoronaVac primary series$

The immune responses and safety of fractional third-doses of heterologous COVID-19 vaccines after CoronaVac primary series

Researchers evaluated the vaccine effectiveness of half-doses of AZD1222 or BNT162b2 COVID-19 vaccines as a booster dose following primary series vaccination with CoronaVac.

6 Oct 2022

Yeast display used to generate SARS-CoV-2 RBD-specific nanobodies

Researchers engineered biparatopic nanobodies against SARS-CoV-2.

5 Oct 2022

Omicron reduces host antibody response by lower B-cell antigenicity

A new study explores the functional relevance of some Omicron mutations in terms of their ability to escape neutralizing antibody responses.

4 Oct 2022

Antibody escape mutations of SARS-CoV-2 BA.2.75

A new study discusses how immune escape mutations allow a recent SARS-CoV-2 variant to evade neutralizing antibodies and cause breakthrough infections.

4 Oct 2022

What is the COVID-19 mRNA-1273 vaccine effectiveness against SARS-CoV-2 Omicron sub-variants?

Researchers evaluated the messenger ribonucleic acid (mRNA)-1273 vaccine effectiveness against SARS-CoV-2 Omicron sub-variant of concern infections and hospitalizations.

4 Oct 2022

Model simulations for use of rapid antigen testing for COVID-19 diagnosis

In new research, researchers overviewed the impact of rapid antigen tests use cases with and without surveillance; hospital-based screening to decrease nosocomial COVID-19, and COVID-19 testing to enable prompt and expanded treatment for different country settings.

4 Oct 2022

What are the challenges of COVID-19 vaccination and herd immunity?

A new study reviewed the challenges of coronavirus disease 2019 (COVID-19) vaccination and herd immunity.

4 Oct 2022

Nursing home study shows 4th COVID mRNA dose provides extra protection against severe Omicron outcomes

In a recent study posted to the medRxiv* preprint server, researchers in Canada assessed the effectiveness of protection elicited by the fourth dose of the coronavirus disease 2019 (COVID-19) mRNA vaccine.

4 Oct 2022

Spike-specific memory B cells develop resilience to SARS-CoV-2

In a recent study posted to the bioRxiv* preprint server, researchers explored the cross-reactivity, avidity, and kinetics of memory B-cells and serum antibodies in vaccinated and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infected individuals.

4 Oct 2022

A case for updating COVID vaccines with beta variant spike sequences

A recent Nature Communications study has discussed preclinical and clinical data on COVID-19 vaccine antigens that could be utilized to develop effective booster vaccines.

3 Oct 2022

Is it safe to breastfeed after the COVID-19 mRNA vaccination?

A recent study attempts to answer the question of whether the COVID-19 vaccine is safe for lactating women who received the vaccine within six months postpartum.

3 Oct 2022

The duration of the infectious stage of individuals infected with the SARS-CoV-2 Omicron variant

Researchers demonstrated clinical features and infectivity of the currently dominant SARS-CoV-2 variant of concern Omicron, compared to Delta, the previously dominant VOC.

3 Oct 2022

Does high vaccine coverage among the adult population grant the unvaccinated younger population indirect protection against SARS-CoV-2?

Researchers investigated whether the mass vaccination of the adult population of Schwaz, Austria, against SARS-CoV-2 conferred an indirect protective effect on the proportion of unvaccinated children in the population.

3 Oct 2022

COVID-19 vaccination offers sustained and potent neutralizing protection against variants compared to natural infection

In a new study, researchers assessed the immunoglobulin (Ig)-G responses to SARS-CoV-2 after natural infection or vaccination.

3 Oct 2022

Vaccine effectiveness of a second mRNA COVID-19 vaccine booster among nursing home residents

Researchers compared the effectiveness of double booster SARS-CoV-2 mRNA vaccinations and single booster vaccinations among nursing home residents in the US.

3 Oct 2022

Vaccinated individuals infected with Omicron less likely to experience long COVID symptoms

Omicron infection and receipt of COVID-19 vaccines reduced the risk of PCC symptoms six months following infection.

2 Oct 2022

What is the risk of Omicron infection in pregnant women?

In a new study, researchers evaluated the risk of SARS-CoV-2 infection in pregnant women during the Omicron predominance period in the United Kingdom

30 Sep 2022

Effectiveness of anti-SARS-CoV-2 immunoadhesin against omicron and other emerging variants

A new study demonstrated the efficacy of a newly engineered angiotensin-converting enzyme 2 (ACE2) based immunoadhesin against Omicron and other SARS-CoV-2 VOCs.

30 Sep 2022

Bioactive compounds derived from Ganoderma lucidum exhibit anti-SARS-CoV-2 activity

Scientists have identified lucidenic acid A, one of the bioactive compounds of Ganoderma lucidum, as a potential inhibitor of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) host cell entry. The study has recently been published in the journal Food and Chemical Toxicology.

29 Sep 2022

Omicron News and Research

Intranasal vaccine represents an effective broad-spectrum COVID-19 vaccine strategy

The immune responses and safety of fractional third-doses of heterologous COVID-19 vaccines after CoronaVac primary series

Yeast display used to generate SARS-CoV-2 RBD-specific nanobodies

Omicron reduces host antibody response by lower B-cell antigenicity

Antibody escape mutations of SARS-CoV-2 BA.2.75

What is the COVID-19 mRNA-1273 vaccine effectiveness against SARS-CoV-2 Omicron sub-variants?

Model simulations for use of rapid antigen testing for COVID-19 diagnosis

What are the challenges of COVID-19 vaccination and herd immunity?

Nursing home study shows 4th COVID mRNA dose provides extra protection against severe Omicron outcomes

Spike-specific memory B cells develop resilience to SARS-CoV-2

A case for updating COVID vaccines with beta variant spike sequences

Is it safe to breastfeed after the COVID-19 mRNA vaccination?

The duration of the infectious stage of individuals infected with the SARS-CoV-2 Omicron variant

Does high vaccine coverage among the adult population grant the unvaccinated younger population indirect protection against SARS-CoV-2?

COVID-19 vaccination offers sustained and potent neutralizing protection against variants compared to natural infection

Vaccine effectiveness of a second mRNA COVID-19 vaccine booster among nursing home residents

Vaccinated individuals infected with Omicron less likely to experience long COVID symptoms

What is the risk of Omicron infection in pregnant women?

Effectiveness of anti-SARS-CoV-2 immunoadhesin against omicron and other emerging variants

Bioactive compounds derived from Ganoderma lucidum exhibit anti-SARS-CoV-2 activity

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