immunity News and Research

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Researchers reveal how pneumonia-causing bacteria obtain essential nutrient from our bodies

Australian researchers have revealed how the bacterium Streptococcus pneumoniae (pneumococcus) obtains the essential nutrient, manganese, from our bodies, which could lead to better therapies to target what is a life-threatening, antibiotic-resistant pathogen.

6 Aug 2021

Study: IgG antibodies against SARS-CoV-2 remain stable, or even increase, seven months after infection

The levels of IgG antibodies against SARS-CoV-2 Spike protein remain stable, or even increase, seven months after infection, according to a follow-up study in a cohort of healthcare workers coordinated by the Barcelona Institute for Global Health, an institution supported by "la Caixa" Foundation, in collaboration with the Hospital Clinic of Barcelona.

6 Aug 2021

Affinity maturation of SARS-CoV-2 antibodies make them more powerful and resistant to escape mutations

A new study in the journal Immunity shows in fascinating detail how antibodies elicited by this virus show affinity maturation, a process occurring by somatic hypermutation (SHM) in the lymphoid germinal centers, to become more specific in their recognition of antigens.

6 Aug 2021

Dialysis patients' response to COVID19 vaccine type

The researchers at Standford University evaluated the humoral vaccination response of 2,099 fully vaccinated patients undergoing dialysis.

5 Aug 2021

COVID vaccines generate antibodies in saliva

Researchers in the United States and Canada have conducted a study showing that the vaccines developed by Pfizer-BioNTech and Moderna to protect against coronavirus disease 2019 (COVID-19) generate local antibody responses in the salivary gland that are independent of the systemic immune response.

5 Aug 2021

Vaccination may protect against SARS-CoV-2 infection at the eye surface

Researchers in Australia have conducted a study showing that vaccination against coronavirus disease 2019 (COVID-19) induces key antibodies at the eye surface that may help to protect against the transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).

5 Aug 2021

Vaccinia-based COVID-19 vaccines confer immunity in hamster model

In a paper recently uploaded to the preprint server bioRxiv* by Kulkarni et al. (August 3, 2021), the potential of vaccinia virus-based vaccines expressing the full-length SARS-CoV-2 spike protein is examined in mice and Syrian hamsters. The findings report that the vaccine generates high titers of neutralizing antibodies with good activity towards SARS-CoV-2 variants of concern.

5 Aug 2021

New study examines B cell receptor repertoires in COVID-19 patients

In a paper recently uploaded to the preprint server bioRxiv* by Kim et al. (August 2, 2021), the B cell receptor repertoire of 1,060 COVID-19 patients is compared to that of an equal number of healthy volunteers in a novel manner, utilizing computational deep-learning-based protein embedding techniques, which demonstrate a resolution capable of tracking the changes in immunity in an individual over the course of infection.

5 Aug 2021

Immunocompromised patients could be potential hosts for immune-escape mutants of SARS-CoV-2

In a recently published article in The New England Journal of Medicine, scientists have described how multi-mutational variants of SARS-CoV-2 may evolve in patients with immunosuppression.

5 Aug 2021

How does the mRNA/lipid nanoparticle platform promote protective adaptive immunity against SARS-CoV-2?

Modified mRNA combined with lipid nanoparticles may be beneficial in boosting adaptive immunity against SARS-CoV-2. Research led by Botond Z. Igyártó from Thomas Jefferson University’s Department of Microbiology and Immunology in Pennsylvania recently found that the lipid nanoparticles induce protective adaptive immune responses with antibody titers against lethal doses of the virus.

5 Aug 2021

Two monoclonal antibodies broadly neutralize SARS-CoV-2 variants of concern

Researchers in the United States and Canada have described the structural basis and mode of action for two monoclonal antibodies that potently neutralize severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) – the agent that causes coronavirus disease 2019 (COVID-19).

4 Aug 2021

The role of natural killer cells in the fight against coronavirus infection

This study proposes a mathematical framework to analyze the effect of the viruses on type I interferon (IFN-I) signaling, which is part of the innate immune response. IFN-I brings about natural killer cell activation, which in turn causes the activation of macrophages.

4 Aug 2021

Study finds only 15% of rural health care workers have SARS-CoV-2 antibodies

Antibody testing of health care workers in three rural counties in eastern South Dakota and western Minnesota showed only 15% of the study participants had antibodies to the novel coronavirus.

4 Aug 2021

Heterologous prime-boost vaccination induces robust mucosal and systemic immunity against SARS-CoV-2

Scientists from Germany and Italy recently demonstrated the benefits of intramuscular/intranasal heterologous prime-boost vaccination regimen against coronavirus disease 2019 (COVID-19).

4 Aug 2021

One billion doses of Oxford-AstraZeneca COVID-19 vaccine released

The University of Oxford's and our partners AstraZeneca have today announced that one billion doses of the ChAdOx1 nCov-19 coronavirus vaccine have been released, to more than 170 countries, marking a key milestone as part of the University and AstraZeneca's joint vision to make the available to the world, on a not-for-profit basis for the world during the pandemic, and in perpetuity for low- and middle-income countries.

4 Aug 2021

Study provides new insights for understanding dynamic changes in immune responses to COVID-19

A KAIST immunology research team found that a specific subtype of macrophages that originated from blood monocytes plays a key role in the hyper-inflammatory response in SARS-CoV-2 infected lungs, by performing single-cell RNA sequencing of bronchoalveolar lavage fluid cells.

4 Aug 2021

‘Wisdom and fear’ lead 90% of U.S. seniors to covid vaccines

Amid the latest surge in covid-19 cases and hospitalizations, the United States on Tuesday hit a milestone that some thought was unattainable: 90% of people 65 and older are at least partly vaccinated against the disease.

4 Aug 2021

Nasal version of AstraZeneca SARS-CoV-2 vaccine prevents infection in animal models

Scientists evaluate the use of ChAdOx1 nCoV-19 as a potential intranasal (IN) vaccine candidate in hamster and rhesus macaque models.

3 Aug 2021

Study shows COVID-19 organ-specific outcomes depend on anti-spike glycoprotein antibodies

A recent study from the University of Rochester reveals how the biodistribution kinetics and the affinity of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) for many different organs in the human body can be affected by antibodies targeting viral spike glycoprotein. The paper is currently available on the bioRxiv* preprint server while it undergoes peer review.

3 Aug 2021

Flagging potential molecular predictors of response to biological therapies in ulcerative colitis

Several individuals suffering from bowel diseases like ulcerative colitis fail to respond to conventionally used biologic therapies.

3 Aug 2021

immunity News and Research

Researchers reveal how pneumonia-causing bacteria obtain essential nutrient from our bodies

Study: IgG antibodies against SARS-CoV-2 remain stable, or even increase, seven months after infection

Affinity maturation of SARS-CoV-2 antibodies make them more powerful and resistant to escape mutations

Dialysis patients' response to COVID19 vaccine type

COVID vaccines generate antibodies in saliva

Vaccination may protect against SARS-CoV-2 infection at the eye surface

Vaccinia-based COVID-19 vaccines confer immunity in hamster model

New study examines B cell receptor repertoires in COVID-19 patients

Immunocompromised patients could be potential hosts for immune-escape mutants of SARS-CoV-2

How does the mRNA/lipid nanoparticle platform promote protective adaptive immunity against SARS-CoV-2?

Two monoclonal antibodies broadly neutralize SARS-CoV-2 variants of concern

The role of natural killer cells in the fight against coronavirus infection

Study finds only 15% of rural health care workers have SARS-CoV-2 antibodies

Heterologous prime-boost vaccination induces robust mucosal and systemic immunity against SARS-CoV-2

One billion doses of Oxford-AstraZeneca COVID-19 vaccine released

Study provides new insights for understanding dynamic changes in immune responses to COVID-19

‘Wisdom and fear’ lead 90% of U.S. seniors to covid vaccines

Nasal version of AstraZeneca SARS-CoV-2 vaccine prevents infection in animal models

Study shows COVID-19 organ-specific outcomes depend on anti-spike glycoprotein antibodies

Flagging potential molecular predictors of response to biological therapies in ulcerative colitis

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