immunity News and Research

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Plasma zinc status not an effective prognostic factor for hospitalized COVID-19 patients

Due to previous evidence suggesting that zinc deficiencies can lead to complications along with an impaired antiviral response, a group of international researchers has undertaken a prospective observational study to investigate this association further.

14 Jun 2021

South African and Brazilian SARS-CoV-2 variants overtake UK variant in French regions

Researchers have found that the variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that were initially identified in South Africa (B.1.351) and Brazil (P.1) appear to be spreading more quickly in some areas of France than the previously dominant UK variant B.1.1.7.

14 Jun 2021

Researchers examine the importance of time after COVID-19 vaccination

A new study has been published on the medRxiv* preprint server, which deals with the importance of time post-vaccination based on the quantification of VOC immune evasion. The current study developed a toy model to estimate the effectiveness of the vaccines against VOC over time. Researchers have shown that the estimated value is highly dependent on time post-vaccination. Additionally, this model can describe the implications of changes in vaccine efficacy against VOC.

14 Jun 2021

Robust immunity against SARS-CoV-2 with Pfizer vaccine is mediated by memory B cells

A reassuring study, released as a preprint on the medRxiv* server, from a multi-institutional team of researchers in Italy suggests that with the Pfizer-BioNTech BNT162b2 vaccine, post-vaccination immunity against the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is both robust and durable.

14 Jun 2021

Intranasal monoclonal SARS-CoV-2 antibody therapy shows promise in preclinical trials

A new study, released as a preprint on the bioRxiv* server, presents a new monoclonal antibody (MAb) called DZIF-10c that powerfully neutralizes SARS-CoV-2, including the current variants of concern (VOCs). With high bioavailability in the lungs and wide distribution in the body, the antibody was able to prevent SARS-CoV-2 infection in mice after intranasal administration.

14 Jun 2021

Role of traditional medicine against SARS-CoV-2

A group of researchers at Kannur University reviewed selected papers and in silico work on potential drug leads that could be used to manage COVID-19.

13 Jun 2021

Humoral innate pattern recognition molecules against SARS-CoV-2

In a paper recently uploaded to the preprint server medRxiv by Garlanda et al. (June 8th, 2021), humoral pattern recognition molecules are explored for affinity towards SARS-CoV-2, contributing to unraveling the role of these molecules in COVID-19 disease progression.

13 Jun 2021

Study shows poor antibody response in naive elderly of nursing homes after mRNA vaccination

A new study describes inadequate antibody responses to the Pfizer/BioNTech vaccine against coronavirus disease 2019 (COVID-19) in elderly residents of a care home with no prior history of infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), compared to those with such a history. This adds to the current understanding of vaccine efficacy against infection.

13 Jun 2021

New Astra-Zeneca B.1.351 vaccine AZD2816 strongly immunogenic against multiple SARS-CoV-2 variants of concern

A new study, released on the bioRxiv* preprint server, supports the efficacy of the wildtype ChAdOx1 nCoV-19 (AZD1222) vaccine against B.1.351, B.1.617.1 and B.1.617.2, while showing that a booster dose of vaccine based on the B.1.351 spike induces further increase in antibody titers.

11 Jun 2021

Scientists detect delayed and reduced antibody responses after BioNTech/Pfizer COVID-19 vaccination in older adults

Researchers at the U.S. Centers for Disease Control and Prevention (CDC) detected delayed and reduced antibody and T cell responses after immunization with BNT162b2 or the Pfizer-BioNTech COVID-19 vaccine in older adults compared with healthcare workers in Germany.

11 Jun 2021

Metformin prevents pulmonary or lung inflammation in animals infected with SARS-CoV-2

Metformin is a widely prescribed blood sugar-lowering drug. It is often used as an early therapy (in combination with diet and lifestyle changes) for type 2 diabetes, which afflicts more than 34 million Americans.

11 Jun 2021

In vivo protection from emerging SARS-CoV-2 variants by protein nanoparticle vaccine

Researchers in the United States have developed a new coronavirus disease 2019 (COVID-19) vaccine that induced potent neutralizing antibodies against variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in animal models.

10 Jun 2021

Shark vNAR antibodies inhibit SARS-CoV-2 variants in vitro

Researchers in the UK and Austria have identified a novel class of antibodies that is highly effective at neutralizing the original strain of severe acute respiratory syndrome (SARS-CoV-2) and maintaining blocking activity against certain viral variants that have emerged.

10 Jun 2021

Discovery suggests new pathways for safeguarding the immune system’s ability to fight cancer

In order for cancer to grow and spread, it has to evade detection by our immune cells, particularly specialized "killer" T cells.

10 Jun 2021

The longevity of SARS-CoV-2 antibodies and their cross-neutralization against variants of concern

In a new study by researchers in the UK, the activity of neutralizing antibodies collected from the sera of individuals that contracted COVID-19 during the first wave of the pandemic is tested against variants of concern the B.1.1.7 (or UK) variant and the B.1.351 (or South African) variant, demonstrating somewhat reduced potency of neutralization towards these strains.

10 Jun 2021

Bovine-derived polyclonal antibodies exhibit high efficacy in neutralizing SARS-CoV-2 variants

A team of scientists in Estonia has recently evaluated the therapeutic/prophylactic efficacy of anti-SARS-CoV-2 polyclonal antibodies derived from the colostrum of immunized cows.

10 Jun 2021

Could the COVID-19 vaccination rollout protect against future coronavirus outbreaks?

A new study suggests that the rollout of vaccines against the COVID-19 pandemic may be significant not only in preventing infections by SARS-CoV-2 but other endemic and pandemic-potential coronaviruses (CoVs) as well.

10 Jun 2021

New article explains the pros and cons of nasal vaccines

Vaccines are mostly synonymous with needles, an efficient and effective way to provide immunity to myriad infections. As COVID-19 vaccination efforts roll out across the U.S. and the world, some experts believe that a vaccine administered through the nose could be just as effective and easier to administer.

10 Jun 2021

Study: COVID-19 vaccines safe for IBD patients

Patients with inflammatory bowel diseases (IBD) do not appear to have increased risk of side effects from the Pfizer or Moderna COVID-19 vaccines, according to a recent Cedars-Sinai study published online and upcoming in print in the American Journal of Gastroenterology.

9 Jun 2021

Researchers review the therapeutic potential of resveratrol nasal formulations in COVID-19

In a recently published article in the journal Frontiers in Immunology, scientists have reviewed the existing literature on antiviral and anti-inflammatory efficacy of resveratrol-based inhaled formulations in preventing SARS-CoV-2 infection and reducing COVID-19 severity.

9 Jun 2021

immunity News and Research

Plasma zinc status not an effective prognostic factor for hospitalized COVID-19 patients

South African and Brazilian SARS-CoV-2 variants overtake UK variant in French regions

Researchers examine the importance of time after COVID-19 vaccination

Robust immunity against SARS-CoV-2 with Pfizer vaccine is mediated by memory B cells

Intranasal monoclonal SARS-CoV-2 antibody therapy shows promise in preclinical trials

Role of traditional medicine against SARS-CoV-2

Humoral innate pattern recognition molecules against SARS-CoV-2

Study shows poor antibody response in naive elderly of nursing homes after mRNA vaccination

New Astra-Zeneca B.1.351 vaccine AZD2816 strongly immunogenic against multiple SARS-CoV-2 variants of concern

Scientists detect delayed and reduced antibody responses after BioNTech/Pfizer COVID-19 vaccination in older adults

Metformin prevents pulmonary or lung inflammation in animals infected with SARS-CoV-2

In vivo protection from emerging SARS-CoV-2 variants by protein nanoparticle vaccine

Shark vNAR antibodies inhibit SARS-CoV-2 variants in vitro

Discovery suggests new pathways for safeguarding the immune system’s ability to fight cancer

The longevity of SARS-CoV-2 antibodies and their cross-neutralization against variants of concern

Bovine-derived polyclonal antibodies exhibit high efficacy in neutralizing SARS-CoV-2 variants

Could the COVID-19 vaccination rollout protect against future coronavirus outbreaks?

New article explains the pros and cons of nasal vaccines

Study: COVID-19 vaccines safe for IBD patients

Researchers review the therapeutic potential of resveratrol nasal formulations in COVID-19

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