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Correlation of antibody titers with COVID-19 vaccine efficacy

In a new study the relationship between virus-neutralizing antibody and spike protein-binding IgG antibody levels is explored following vaccination by one of seven currently deployed vaccines. The findings support the use of antibody titers as correlates of protection for COVID-19 vaccines.

23 Mar 2021

A new COVID-19 candidate vaccine induces robust humoral and cellular immune responses in mice

A Korea-based company EyeGene Inc. has recently developed a liposome-based mRNA candidate vaccine against COVID-19, which contains full-length spike protein of the European variant (D614G) of SARS-CoV-2 as a vaccine antigen.

23 Mar 2021

Prediction of antibody responses in recovered COVID-19 patients remains unclear

It is crucial to gain a better understanding of how an antibody response is developed against SARS-CoV-2, and how long it lasts. This will determine the antibody titers and duration that protect against reinfection by the virus. A new preprint on the medRxiv* server shows this to be still a distant goal.

22 Mar 2021

How effective has rapid COVID-19 vaccination been in Israel?

Despite high vaccination rates, analysis shows a definite positive impact, but patience is needed to see the real-world impacts in Israel, a pattern that may hold true in other countries also.

19 Mar 2021

SARS-CoV-2 variants with E484K mutation show mRNA vaccine-induced antibody evasion

A recent study found that the Pfizer-BioNTech mRNA vaccine had limited efficacy in identifying mutated receptor-binding domains (RBDs) of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike protein similar to the B.1.351 and P.1 variants.

18 Mar 2021

Could visible light be a safe and effective SARS-CoV-2 disinfectant?

A new study reports that blue light with a wavelength of 400–420 nm can inactivate enveloped viruses like SARS-CoV-2 and influenza. This could allow continuous disinfection of spaces even when people are present.

17 Mar 2021

How can a rapid COVID-19 vaccine rollout expedite the relaxation of pandemic restrictions?

A new study describes a model in which NPIs can be safely relaxed while vaccination is still ongoing, with emphasis on the speed of vaccination campaigns.

17 Mar 2021

Researchers explore difference in reactions to SARS-CoV-2 infection between children and adults

The COVID-19 pandemic has claimed over 2.67 million lives in less than a year and a half. However, it is uncommon in children, with less than 2% of the cases being in individuals below the age of 19. Most of these are of mild severity, with the clinical features of severe COVID-19 being rare in this age group.

17 Mar 2021

Researchers develop innovative profiling methods for SARS-CoV-2 infection

A team of researchers from various institutions in the USA used RNA-sequencing data and other methods to profile unique genes and other characteristics associated with SARS-CoV-2 in New York City (NYC).

17 Mar 2021

White-tailed deer susceptible to SARS-CoV-2, finds study

White-tailed deer have been observed to be susceptible to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). They can also transmit the virus both through direct and indirect contact to one another, researchers find. The research paper is available to be read online in the Journal of Virology.

15 Mar 2021

What is a protective neutralizing antibody titer against SARS-CoV-2 infection?

A new study describes a predictive model of protective immunity against SARS-CoV-2 infection that could help evolve optimal vaccination strategies to maintain protection and reduce the death rate.

15 Mar 2021

Why does convalescent plasma therapy for severe COVID-19 show mixed success?

A surprising new preprint, released on the medRxiv* server, suggests that the beneficial effects of convalescent plasma (CP) in this disease stem not only from the presence of neutralizing antibodies, but also the immunomodulatory effects of this plasma that shapes the host immune response.

15 Mar 2021

Study suggests COVID-19 vaccine acceptance on the rise in UK

A team of researchers in the UK recently conducted a two-wave survey on the hesitancy of individuals to receive COVID-19 vaccination.

15 Mar 2021

SARS-CoV-2 can infect blood monocytes and trigger inflammation, finds study

Researchers found about 10% of blood monocytes in coronavirus disease 2019 (COVID-19) patients are infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). These monocytes then die, leading to the release of cytokines – a feature associated with severe and critical COVID-19.

11 Mar 2021

Could an “ACE2 Triple Decoy” be an alternative approach to neutralizing SARS-CoV-2?

A team of scientists from the USA recently developed a recombinant “Angiotensin converting enzyme 2 (ACE2) Triple Decoy” that can trap SARS-CoV-2 and prevent its propagation inside the host cell.

11 Mar 2021

Researchers characterize antibody responses to COVID-19 mRNA-based vaccine

A team of scientists from the USA and Canada has recently characterized the antibodies developed against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in response to an mRNA-based coronavirus disease 2019 (COVID-19) vaccine.

10 Mar 2021

A genetic variant of TMPRSS2 may confer protection against severe COVID-19

Among a large sample of COVID-19 patients, researchers found that a genetic variant – caused by an amino acid substitution from valine to methionine – is associated with a reduced chance of severe disease.

9 Mar 2021

Ultraviolet light therapy reduces viral load in critically ill COVID-19 patients

Scientists from the United States has recently evaluated the safety and efficacy profiles of ultraviolet-A (UVA) light applied via an endotracheal tube to critically ill COVID-19 patients.

9 Mar 2021

Small negative lifestyle changes during COVID-19 lockdown could accumulate, say researchers

An interesting new study by researchers in Australia, which has been published in the journal PLOS ONE, suggests that lifestyle changes due to pandemic restrictions on outdoor mobility have been small. But they warn that these may accumulate over time.

8 Mar 2021

A SARS-CoV-2 spike protein adjuvant vaccine candidate produces durable rapid protection in vivo

A recent study reports the safety and high efficacy of an adjuvanted vaccine candidate against SARS-CoV-2 and the complications of COVID-19.

5 Mar 2021

Miscellaneous News

Correlation of antibody titers with COVID-19 vaccine efficacy

A new COVID-19 candidate vaccine induces robust humoral and cellular immune responses in mice

Prediction of antibody responses in recovered COVID-19 patients remains unclear

How effective has rapid COVID-19 vaccination been in Israel?

SARS-CoV-2 variants with E484K mutation show mRNA vaccine-induced antibody evasion

Could visible light be a safe and effective SARS-CoV-2 disinfectant?

How can a rapid COVID-19 vaccine rollout expedite the relaxation of pandemic restrictions?

Researchers explore difference in reactions to SARS-CoV-2 infection between children and adults

Researchers develop innovative profiling methods for SARS-CoV-2 infection

White-tailed deer susceptible to SARS-CoV-2, finds study

What is a protective neutralizing antibody titer against SARS-CoV-2 infection?

Why does convalescent plasma therapy for severe COVID-19 show mixed success?

Study suggests COVID-19 vaccine acceptance on the rise in UK

SARS-CoV-2 can infect blood monocytes and trigger inflammation, finds study

Could an “ACE2 Triple Decoy” be an alternative approach to neutralizing SARS-CoV-2?

Researchers characterize antibody responses to COVID-19 mRNA-based vaccine

A genetic variant of TMPRSS2 may confer protection against severe COVID-19

Ultraviolet light therapy reduces viral load in critically ill COVID-19 patients

Small negative lifestyle changes during COVID-19 lockdown could accumulate, say researchers

A SARS-CoV-2 spike protein adjuvant vaccine candidate produces durable rapid protection in vivo

Real-time Raman monitoring for pharmaceutical hot melt extrusion

Synthetic Psychedelics: A Growing Public Health Concern

How the Vutara VXL simplifies single-molecule imaging

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