immunity News and Research

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Emerging SARS-CoV-2 B.1.619 and B.1.620 variants in South Korea

Researchers investigate the spread and transmission ability of SARS-CoV-2 lineages B.1.619 and B.1.620 in South Korea.

9 Jan 2022

SARS‑CoV‑2 Omicron variant escapes monoclonal antibodies

Researchers determine the neutralizing activity of four mAbs against ten strains of SARS-CoV-2.

9 Jan 2022

Vaccinated mothers transfer SARS-CoV-2 antibodies to their breastfed infants

Women vaccinated against COVID-19 transfer SARS-CoV-2 antibodies to their breastfed infants, potentially giving their babies passive immunity against the coronavirus, according to University of Massachusetts Amherst research.

7 Jan 2022

Omicron variant found to be much less sensitive to neutralizing antibodies than Delta

The Omicron variant was detected for the first time in South Africa in November 2021 and has since spread to many countries.

7 Jan 2022

Vaccine breakthrough COVID-19 infections found to be less likely transmitted

A new study displays that vaccine breakthrough COVID-19 infections are far less likely to transmit from the index patient to contacts than infections in partially or unvaccinated individuals.

7 Jan 2022

Multisystem inflammatory syndrome in children rare after COVID-19 vaccination in adolescents

The current study was based on merged results using the CDD’s surveillance database coupled with the Vaccine Adverse Event Reporting System (VAERS), along with reports from health departments or physicians to the CDC.

7 Jan 2022

Reinfection with SARS-CoV-2 in children

These findings bear out earlier reports that COVID-19 is less frequent and severe in children than adults.

7 Jan 2022

SARS-CoV-2 Omicron variant leads to widespread escape from neutralizing antibody responses

A new study reported the neutralization of Omicron by a large panel of sera collected from convalescent early pandemic, Alpha, Beta, Gamma and Delta infected individuals, as well as among vaccinees receiving three doses of the Oxford/AstraZeneca (AZD1222) or the Pfizer BioNtech (BNT16b2) vaccines.

7 Jan 2022

Levels of infectious SARS-CoV-2 in vaccinated and unvaccinated individuals

A new study assessed the levels of infectious virus (obtained from the nasopharynx) in vaccinated and unvaccinated individuals.

7 Jan 2022

Researchers isolate Omicron variant, leveling the path to vaccine development and vaccine efficacy studies

Researchers from India have now successfully grown and isolated the Omicron variant from hamsters in vivo with further culturing in the Vero CCL-81 cells in vitro, in a step forward towards testing the effectiveness of existing SARS-CoV-2 vaccines and generation of new Omicron appropriate vaccines.

7 Jan 2022

Epidemic model for estimating relative transmissibility and immune escape of SARS-CoV-2 Omicron variant in South Africa

A new study developed a stochastic, multi-strain, compartmental epidemic model to estimate the relative transmissibility and immune escape capacity of the Omicron variant.

7 Jan 2022

Additional SARS-CoV-2 vaccine doses elicit robust seroresponse among patients receiving maintenance dialysis

Researchers thus recently published a report wherein they examined the seroresponse to an additional dose of vaccine in patients on maintenance dialysis.

7 Jan 2022

SARS-CoV-2 Omicron less pathogenic in hamsters

A new research paper posted as a preprint to the bioRxiv* server attempts to throw some light on this question by studying viral pathogenicity in golden hamsters, a valuable model for severe COVID-19 due to the development of reproducible weight loss and pneumonia after infection with the virus.

6 Jan 2022

immunity News and Research

Emerging SARS-CoV-2 B.1.619 and B.1.620 variants in South Korea

SARS‑CoV‑2 Omicron variant escapes monoclonal antibodies

Vaccinated mothers transfer SARS-CoV-2 antibodies to their breastfed infants

Omicron variant found to be much less sensitive to neutralizing antibodies than Delta

Vaccine breakthrough COVID-19 infections found to be less likely transmitted

Multisystem inflammatory syndrome in children rare after COVID-19 vaccination in adolescents

Reinfection with SARS-CoV-2 in children

SARS-CoV-2 Omicron variant leads to widespread escape from neutralizing antibody responses

Levels of infectious SARS-CoV-2 in vaccinated and unvaccinated individuals

Researchers isolate Omicron variant, leveling the path to vaccine development and vaccine efficacy studies

Epidemic model for estimating relative transmissibility and immune escape of SARS-CoV-2 Omicron variant in South Africa

Additional SARS-CoV-2 vaccine doses elicit robust seroresponse among patients receiving maintenance dialysis

SARS-CoV-2 Omicron less pathogenic in hamsters

Scientists assess effectiveness of neutralizing antibodies against seven SARS-CoV-2 variants, including Omicron

Antibody binding response significantly reduced for Omicron compared to other SARS-CoV-2 variants

Researchers outline characteristics of Omicron variant immune escape and viral entry into host cells

Exploring a micro-simulation study on shielding individuals at high risk of COVID-19

Comparison of neutralization of SARS-CoV-2 variants of concern Omicron and Delta

Does SARS-CoV-2 Omicron variant elicited neutralizing immunity enhance that elicited by the Delta variant?

COVID boosters hinder SARS-CoV-2 Omicron

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