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Study examines clinical outcomes in vaccinated individuals hospitalized with SARS-CoV-2 Delta variant

A new study has been published on the medRxiv* preprint server that has evaluated the clinical outcomes of the COVID-19 patients hospitalized in AIG hospitals, Hyderabad, India, between April 24, 2021, and May 31, 2021.

20 Jul 2021

Study reports on COVID-19 vaccine uptake and antibody prevalence in England during May 2021

A new study reports this finding, along with varying antibody prevalence among different groups and regions and between different age groups. In the current paper, available as a preprint on the medRxiv* server, the results of the sixth round of the REACT-2 study are reported.

20 Jul 2021

Past SARS-CoV-2 infection enhances mRNA vaccine-induced neutralization of variants of concern

Researchers in the United States have conducted a study suggesting that individuals previously infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) exhibit better neutralizing activity against variants of concern following vaccination against coronavirus disease 2019 (COVID-19) than previously uninfected vaccinees.

19 Jul 2021

Neutralizing antibodies persist against SARS-CoV-2 at least a year after infection

Researchers in Finland have conducted a study showing that the neutralizing bodies generated following infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) – the agent that causes coronavirus disease 2019 (COVID-19) – generally persist for at least a year.

19 Jul 2021

Thai study looks at CoronaVac vaccine vs. natural immunity to SARS-COV-2 variants

A new study evaluates the efficacy of vaccine- and infection-induced antibodies against SARS-CoV-2 variants.

19 Jul 2021

Study: Second dose of COVID-19 vaccine induces a powerful boost to the immune system

The second dose of a COVID-19 vaccine induces a powerful boost to a part of the immune system that provides broad antiviral protection, according to a study led by investigators at the Stanford University School of Medicine.

19 Jul 2021

Study suggests children develop short-term humoral immunity following SARS-CoV-2 infection

A single-center, cross-sectional epidemiological survey conducted in Israel has recently pointed out that antibodies induced by natural SARS-CoV-2 infection in children start declining just after 4 months of acute infection. However, their seropositivity rates are not impacted by school reopening. The study has recently been published in the journal Acta Paediatrica.

19 Jul 2021

Do mRNA-based COVID-19 vaccines induce memory T cell response similar to natural infection?

A team of scientists from the United States has recently compared the epitope-specific T cell response after natural severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection or vaccination in both naïve and previously infected individuals.

19 Jul 2021

Government’s plan recklessly exposes millions in the UK to infection, warn experts

The UK government’s latest pandemic plan involves recklessly exposing millions of people to the acute and long-term effects of mass infection, warn experts in The BMJ today.

19 Jul 2021

Oxygen therapy may improve hypoxia-induced B cell abnormalities in COVID-19

Researchers in the United States have demonstrated early and persistent B cell abnormalities in patients with moderate or severe coronavirus disease 2019 (COVID-19) that may be largely driven by hypoxia.

18 Jul 2021

Pfizer-BioNTech and Moderna COVID-19 vaccines establish recall responses to reinfection

Researchers in the United States have conducted a study showing that the coronavirus disease 2019 (COVID-19) vaccines developed by Pfizer-BioNTech and Moderna generate a coordinated adaptive immune response that is capable of eliciting recall responses to future infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).

18 Jul 2021

Evaluation of a synthetic DNA SARS-CoV-2 vaccine INO-4800 using a nonhuman primate model

A new study published in Vaccine assesses the safety and efficacy of the synthetic DNA vaccine candidate INO-4800, delivered as a single or double dose regime.

18 Jul 2021

Researchers identify novel disorder resulting from a mutation in AIOLOS protein

Primary immunodeficiencies, such as severe combined immunodeficiency disease (SCID), occur when the immune system does not work properly, leading to increased susceptibility to various infections, autoimmunity, and cancers.

16 Jul 2021

Messenger RNA vaccines against COVID-19 not found in breast milk

Messenger RNA vaccines against COVID-19 were not detected in human milk, according to a small study by UC San Francisco, providing early evidence that the vaccine mRNA is not transferred to the infant.

16 Jul 2021

Moderna SARS-CoV-2 vaccine highly effective against alpha and beta variants

The Moderna SARS-CoV-2 vaccine was widely distributed and had a reported efficacy in clinical trials of 94.1% against the wildtype SARS-CoV-2 following the second dose administration. Therefore, Chemaitelly et al. used this as an opportunity to measure the vaccine's efficacy against these variants as reported in a recent Nature Medicine paper, finding that the vaccine has good efficacy in all aspects.

16 Jul 2021

Study shows joint effects of perceived risk and availability on cannabis use

Combined perceptions of the risk and availability of cannabis influence the risk of cannabis use more than perceived risk and perceived availability alone, according to a new study at Columbia University Mailman School of Public Health.

16 Jul 2021

Mixing COVID vaccines generates a comparable immune response

The validity and safety of mixing first and second doses of different types are explored in a paper recently uploaded to the preprint server medRxiv* by Rose et al. (July 13th, 2021), finding that robust antibody response is induced, comparable to, and perhaps even exceed that generated by homologous dosing.

16 Jul 2021

COVID-19 vaccine candidate that can be produced in yeast proves effective in macaques

Researchers in the United States have designed a modular protein subunit vaccine against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that elicited a strong immune response in macaques and prevented the animals from developing coronavirus disease 2019 (COVID-19).

15 Jul 2021

Researchers study the role of subnuclear NSrp70 in T cell-mediated adaptive immunity

T cells are components of the body’s immune system. The ability of T cells to recognize diverse pathogens and mount a defense against them stems from the way proteins are spliced during their development and maturation.

15 Jul 2021

Should we be concerned about the SARS-CoV-2 Lambda variant?

As the coronavirus disease (COVID-19) pandemic, caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), wreaks havoc across the globe, the efficacy of available vaccines is being threatened by emerging variants.

15 Jul 2021

immunity News and Research

Study examines clinical outcomes in vaccinated individuals hospitalized with SARS-CoV-2 Delta variant

Study reports on COVID-19 vaccine uptake and antibody prevalence in England during May 2021

Past SARS-CoV-2 infection enhances mRNA vaccine-induced neutralization of variants of concern

Neutralizing antibodies persist against SARS-CoV-2 at least a year after infection

Thai study looks at CoronaVac vaccine vs. natural immunity to SARS-COV-2 variants

Study: Second dose of COVID-19 vaccine induces a powerful boost to the immune system

Study suggests children develop short-term humoral immunity following SARS-CoV-2 infection

Do mRNA-based COVID-19 vaccines induce memory T cell response similar to natural infection?

Government’s plan recklessly exposes millions in the UK to infection, warn experts

Oxygen therapy may improve hypoxia-induced B cell abnormalities in COVID-19

Pfizer-BioNTech and Moderna COVID-19 vaccines establish recall responses to reinfection

Evaluation of a synthetic DNA SARS-CoV-2 vaccine INO-4800 using a nonhuman primate model

Researchers identify novel disorder resulting from a mutation in AIOLOS protein

Messenger RNA vaccines against COVID-19 not found in breast milk

Moderna SARS-CoV-2 vaccine highly effective against alpha and beta variants

Study shows joint effects of perceived risk and availability on cannabis use

Mixing COVID vaccines generates a comparable immune response

COVID-19 vaccine candidate that can be produced in yeast proves effective in macaques

Researchers study the role of subnuclear NSrp70 in T cell-mediated adaptive immunity

Should we be concerned about the SARS-CoV-2 Lambda variant?

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