immunity News and Research

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Key mutation sites in the SARS-CoV-2 spike protein modulate antibody and ACE2 affinity

A paper recently uploaded to the preprint server bioRxiv by researchers at Chapman University in California (Feb 22nd, 2021) utilized computational methods to screen severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) mutants for affinity with the angiotensin-converting enzyme 2 (ACE2) receptor and monoclonal antibodies REG10987 and REG10933.

23 Feb 2021

SARS-CoV-2 mutations allow escape from clinical monoclonal antibodies

A new research paper recently uploaded to the preprint server bioRxiv by Jesse D. Bloom et al. (22nd Feb 2021) aims to map all of the currently circulating SARS-CoV-2 lineages with resistance towards LY-CoV555 and LY-CoV016, and document the specific mutations that confer resistance, ultimately suggesting that future monoclonal antibody cocktails should target a more diverse range of epitopes.

23 Feb 2021

New rapid diagnostic tests can differentiate between COVID-19 variants and multiple viruses

University of Minnesota Medical School researchers have developed two new rapid diagnostic tests for COVID-19 - one to detect COVID-19 variants and one to help differentiate with other illnesses that have COVID-19-like symptoms.

23 Feb 2021

After billions of dollars and dozens of wartime declarations, why are vaccines still in short supply?

The U.S. government has invested billions of dollars in manufacturing, used a wartime act dozens of times to boost supplies and yet there's still not enough covid vaccine on the way to meet demand — or even the government's own goals for national immunization.

23 Feb 2021

L452R mutation potentially favors adaptive evolution of SARS-CoV-2

A team of scientists from the United States recently investigated the mutational signatures in the receptor-binding domain (RBD) of the SARS-CoV-2 spike protein.

23 Feb 2021

Countries with older populations have higher SARS-CoV-2 infections and deaths, says study

A new study examines some patterns revealed by a study of the factors operating in different regions and countries, to offer plausible hypotheses of these variations.

23 Feb 2021

Australia shows an increase in COVID-19 vaccine hesitancy, says study

A disturbing new study details an increase in vaccine hesitancy among many Australians over the period of August 2020 to January 2021. This may have serious implications for the country’s ability to achieve universal immunization.

23 Feb 2021

HSE researchers discover genetic predisposition to COVID-19 severity

HSE University researchers have become the first in the world to discover genetic predisposition to severe COVID-19. The results of the study were published in the journal Frontiers in Immunology.

23 Feb 2021

Protective COVID-19 antibodies can transfer from mothers to babies in the womb

Antibodies that guard against COVID-19 can transfer from mothers to babies while in the womb, according to a new study from Weill Cornell Medicine and NewYork-Presbyterian researchers published in the American Journal of Obstetrics and Gynecology.

23 Feb 2021

Influenza A virus defective interfering particles against SARS-CoV-2

In the search for a broadly acting pan-specific antiviral, an interdisciplinary team from Germany tested the previously proposed (for antiviral treatment against Influenza A infections) - Influenza A virus (IAV) defective interfering particles (DIPs). The research is published online on the bioRxiv preprint server.

23 Feb 2021

Fooling the novel coronavirus with a fake handshake to inactivate the virus

Fool the novel coronavirus once and it can't cause infection of cells, new research suggests.

22 Feb 2021

Virus-specific cellular immunity may be essential for long-term protection against SARS-CoV-2

Researchers from China and the US recently synthesized select peptide pools of the structural and functional proteins of SARS-CoV-2, including spike (S), envelope (E), membrane (M), nucleocapsid (N), and protease (P) proteins as target antigens to assess COVID-19-specific immunity.

22 Feb 2021

Seropositive individuals show similar antibody levels to a second mRNA vaccine dose

Seropositive individuals —people who received antibodies after COVID-19 infection — may be able to safely delay their second mRNA vaccine dose after all, according to the results of a new study.

22 Feb 2021

Failed antiviral response in nasal mucosa may predict severe COVID-19

Researchers in the United States have conducted a study suggesting that the host response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) within nasal mucosa is a key determinant of clinical trajectory in coronavirus disease 2019 (COVID-19).

22 Feb 2021

COVID-19 vaccine candidate shows potential against SARS-CoV-2 and potential future zoonotic coronaviruses

A new study sheds light on the threat posed by future zoonotic coronaviruses to make similar leaps across species barriers to infect human beings and cause other pandemics.

22 Feb 2021

Neanderthal gene can confer protection against severe COVID-19, finds study

A new study has detailed how some of the genes in the human genome inherited from Neanderthals appear to confer a protective effect against severe COVID-19.

22 Feb 2021

Some nutritional supplements may help prevent or mitigate COVID-19 severity

A new study in the Journal of dietary supplements shows that nutritional supplements, including several vitamins and the mineral zinc, may be useful in preventing the infection or reducing its severity if caught.

22 Feb 2021

Some SARS-CoV-2 variants evade mRNA vaccine-induced humoral immune, says study

Understanding how variants escape vaccine-boosted immune function is necessary to neutralizing SARS-CoV-2. An international team of researchers from MIT and Harvard University in the USA analyzed Pfizer and Moderna vaccines' effectiveness in neutralizing spike proteins from 10 different strains of SARS-CoV-2.

22 Feb 2021

Could an intranasal adjuvant to vaccines boost immunity against SARS-CoV-2 variants?

A research team from the University of Michigan Medical School, USA, developed a supplementary intranasal treatment to improve COVID-19 vaccine response and its effects on long-lasting immunity from other variants, such as the B.1.351 variant first found in South Africa.

22 Feb 2021

Disinfectants could be helping bacteria to become resistant

News-Medical speaks to Professor Robert Bragg about disinfectants and how they could be helping bacteria to become resistant.

22 Feb 2021

immunity News and Research

Key mutation sites in the SARS-CoV-2 spike protein modulate antibody and ACE2 affinity

SARS-CoV-2 mutations allow escape from clinical monoclonal antibodies

New rapid diagnostic tests can differentiate between COVID-19 variants and multiple viruses

After billions of dollars and dozens of wartime declarations, why are vaccines still in short supply?

L452R mutation potentially favors adaptive evolution of SARS-CoV-2

Countries with older populations have higher SARS-CoV-2 infections and deaths, says study

Australia shows an increase in COVID-19 vaccine hesitancy, says study

HSE researchers discover genetic predisposition to COVID-19 severity

Protective COVID-19 antibodies can transfer from mothers to babies in the womb

Influenza A virus defective interfering particles against SARS-CoV-2

Fooling the novel coronavirus with a fake handshake to inactivate the virus

Virus-specific cellular immunity may be essential for long-term protection against SARS-CoV-2

Seropositive individuals show similar antibody levels to a second mRNA vaccine dose

Failed antiviral response in nasal mucosa may predict severe COVID-19

COVID-19 vaccine candidate shows potential against SARS-CoV-2 and potential future zoonotic coronaviruses

Neanderthal gene can confer protection against severe COVID-19, finds study

Some nutritional supplements may help prevent or mitigate COVID-19 severity

Some SARS-CoV-2 variants evade mRNA vaccine-induced humoral immune, says study

Could an intranasal adjuvant to vaccines boost immunity against SARS-CoV-2 variants?

Disinfectants could be helping bacteria to become resistant

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