immunity News and Research

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Saliva samples are effective and much friendlier way to measure SARS-CoV-2-specific antibodies

Saliva samples are easy to obtain and useful for measuring antibodies to SARS-CoV-2 in children, which could facilitate epidemiological surveillance in school settings.

29 Nov 2021

CDC strengthens recommendation on COVID-19 booster doses

Today, CDC is strengthening its recommendation on booster doses for individuals who are 18 years and older. Everyone ages 18 and older should get a booster shot either when they are 6 months after their initial Pfizer or Moderna series or 2 months after their initial J&J vaccine.

29 Nov 2021

Does vaccine or infection induced immunity better protect against SARS-CoV-2 variants?

A study investigated whether vaccine- or infection-induced immunity is relatively less effective against infection by specific VOCs.

29 Nov 2021

Immunity found 6 months after SARS-CoV-2 infection in children

A new study suggests that infection-induced antibodies persist, providing protection for at least six months.

29 Nov 2021

Do we need COVID-19 vaccine boosters?

An article published recently in the Journal of Virology explored the science behind COVID-19 vaccine boosters.

29 Nov 2021

Immunogenicity of modified microparticle-adjuvanted SARS-CoV-2 vaccine

Researchers investigated the immunogenicity of a novel adjuvant comprised of a modified porous silicon microparticle for the SARS-CoV-2 S protein RBD subunit vaccine.

29 Nov 2021

Study suggests making COVID vaccines based on Mu variant

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Mu variant (B.1.621, B.1.621.1) has been tagged as a Variant Being Monitored (VBM), and as of August 30, 2021, it had been detected in 39 countries.

28 Nov 2021

Identifying the spread of novel B.1.1.523 SARS-CoV-2

In their recent study, researchers from Lithuania have reported the emergence of a novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant lineage B.1.1.523 containing a set of mutations associated with immune escape, including deletion 156_158del, substitution E484K and S494P in Spike (S) protein.

28 Nov 2021

Low neutralizing antibody titers against SARS-CoV-2 Mu in BNT162b2 vaccinated

Researchers assess the neutralizing antibody titers in BNT162b2-vaccinated people against SARS-CoV-2 isolates from the Mu, Gamma, and B.1.111 lineages.

28 Nov 2021

Using dried blood spots to monitor SARS-CoV-2 antibodies at home

The Roche Elecsys® anti-SARS-CoV-2 S immunoassay was used to demonstrate its ability to measure SARS-CoV-2 antibodies from DBS samples.

28 Nov 2021

The introduction and rapid spread of SARS-CoV-2 Gamma in Venezuela

Researchers from the Instituto Venezolano de Investigaciones Científica investigate the introduction of one of the VOCs into Venezuela.

28 Nov 2021

Seroprevalence study reveals high exposure to SARS-CoV-2 in Bangui population

Researchers performed a cross-sectional study in the city of Bangui, the capital of the Central African Republic from July 12, 2021, to August 20, 2021.

28 Nov 2021

Viral RNA in the blood found to be a reliable indicator of COVID-19 mortality risk

The amount of a SARS-CoV-2 genetic material-;viral RNA-;in the blood is a reliable indicator in detecting which patients will die of the disease, a team led by Université de Montréal medical professor Dr. Daniel Kaufmann has found.

26 Nov 2021

Tech platforms launch new interactive features to help boost vaccine uptake

Tech platforms Facebook, Instagram and TikTok are launching new interactive features to help boost vaccine uptake across the country.

26 Nov 2021

SARS-CoV-2 vaccine based on vesicular stomatitis virus exhibits high neutralizing efficacy against variants

Scientists have tested the efficacy of BriLife®-vaccinated human sera in neutralizing more infectious and probably more virulent SARS-CoV-2 variants.

26 Nov 2021

Post-discharge healthcare use of pediatric COVID-19 patients compared to pediatric RTIs patients

Researchers explored whether, and for how long, hospital contacts due to COVID-19 resulted in an increase in individual health care use, compared to hospital contacts with RSV infection and other RTIs.

26 Nov 2021

A review of natural immunity, vaccines, and variants in SARS-CoV-2 reinfection

In a literature review article published in the Journal of Community Hospital Internal Medicine Perspectives, authors from the US performed a thorough investigation of previous studies and case reports of SARS-CoV-2 reinfection. This review discusses the role of natural immunity, vaccines, and SARS-CoV-2 variants in reinfection.

25 Nov 2021