Omicron News and Research

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Risk factors for Omicron reinfections among previously infected frontline workers in the United States

Researchers examined a prospective cohort of frontline workers in the United States (US) previously infected with SARS-CoV-2. They attempted to identify risk factors that made this highly vulnerable population prone to reinfection by SARS-CoV-2 new variant of concern (VOC), Omicron, known for its high immune evading potential.

1 Feb 2023

Repeated COVID-19 vaccination may improve public health outcomes

A recent study suggests that repeated vaccination at frequent intervals might improve COVID-19 vaccine efficacy and the trajectory of the pandemic.

1 Feb 2023

Rapid engineering of novel SARS-CoV-2 therapeutic antibodies

Researchers assessed the influence of rapid engineering of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) therapeutic antibodies to expand the neutralization spectrum.

31 Jan 2023

Study assesses the sensitivity, specificity of rapid antigen tests and PCR tests for Omicron variant of COVID-19

Testing plays a crucial role in humanity's strategy to mitigate the effects of widespread COVID-19 infection. However, given multiple options for testing and the emergence of the highly contagious Omicron variant, how do we choose which test to use?

30 Jan 2023

Study: COVID-19 is a significant cause of death in children and young people in the U.S.

COVID-19 was the underlying cause of death for more than 940,000 people in the US, including over 1,300 deaths among children and young people aged 0–19 years.

30 Jan 2023

Third booster dose of SARS-CoV-2 vaccine associated with 90% reduction in COVID-19 deaths

A booster (third) dose of a SARS-CoV-2 vaccine was associated with a 90% reduction in death in people with multiple health conditions compared to 2 doses, according to a new study from Hong Kong published in CMAJ.

30 Jan 2023

Does a second monovalent SARS-CoV-2 mRNA booster increase neutralizing activity to Omicron variants in nursing home residents and healthcare workers?

Researchers investigated whether the second booster dose of monovalent COVID-19 mRNA vaccines increases antibody titers and neutralization potential against the SARS-CoV-2 Omicron VOC among NH residents and HCWs.

30 Jan 2023

Study suggests robust lung mucosal immunity against SARS-CoV-2 can be better achieved through hybrid immunity, as opposed to peripheral vaccination alone

Researchers characterized immunological responses by pulmonary mucosal tissues post-COVID-19 vaccination and/or SARS-CoV-2 infection, to assess the impact of hybrid immune protection on the durability of mucosal immunological responses.

30 Jan 2023

COVID vaccines and first boosters provided protection to pregnant women during Omicron surge

COVID vaccines and first boosters provided significant protection to pregnant women against severe complications and death, even after the arrival of the new Omicron variant, according to a study published this week in The Lancet medical journal.

27 Jan 2023

FDA experts are still puzzled over who should get which covid shots and when

At a meeting to simplify the nation's covid vaccination policy, the FDA's panel of experts could agree on only one thing: Information is woefully lacking about how often different groups of Americans need to be vaccinated.

27 Jan 2023

Prenatal MRI helps visualize SARS-CoV-2 infection-induced abnormalities in the placenta and fetuses

Researchers performed a prospective case-control study on pregnant women with confirmed coronavirus disease 2019 (COVID-19).

26 Jan 2023

Florida Gov. Desantis falsely claims bivalent booster boosts chances of covid infection

"Almost every study now has said with these new boosters, you’re more likely to get infected with the bivalent booster."

26 Jan 2023

Updated bivalent mRNA booster protects against circulating SARS-CoV-2 variants

Researchers discuss the efficacy of the bivalent COVID-19 vaccine against symptomatic infection with SARS-CoV-2 variants.

25 Jan 2023

FDA briefing discusses different COVID-19 vaccination regimens

In a recent briefing document published by the United States Food and Drug Administration (US-FDA) ahead of an advisory committee meeting scheduled for January 26, 2023, the national agency proposed that people should be given yearly coronavirus disease 2019 (COVID-19) vaccines.

25 Jan 2023

Data demonstrates SARS-CoV-2 Omicron XBB.1.5 substantially escapes NAb responses after bivalent mRNA boosting

Researchers reported that the SARS-CoV-2 Omicron XBB.1.5 variant evades neutralizing response elicited by bivalent vaccine boosters.

25 Jan 2023

Maternal and perinatal outcomes of women infected with SARS-CoV-2 during the Omicron wave in Italy

Researchers assessed the impact of SARS-CoV-2 vaccination on pregnant women during the Omicron wave.

25 Jan 2023

Study points at low uptake of COVID-19 vaccine boosters by immunocompromised people in the US

Researchers performed a retrospective cohort study among immunocompromised patients registered with Kaiser Permanente Southern California (KPSC), an integrated healthcare system in the United States of America (USA) between December 14, 2020, and August 6, 2022.

25 Jan 2023

A new report examines the safety of bivalent COVID boosters among 1.7 million over-50s

In a recent study posted to medRxiv*, researchers in Denmark examined the risk of adverse events after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron-based bivalent booster vaccination.

24 Jan 2023

Mosaic RBD nanoparticles offer 100% protection against SARS-CoV-2 in animal model

A recent PNAS journal study has sought to address the above-stated drawback and developed a new strategy that involves a self-assembling scaffold of proliferating cell nuclear antigen (PCNA). This technique can develop nanoparticles containing evenly incorporated heterotypic antigens.

24 Jan 2023

Survey of previously vaccinated US residents finds the most common reasons for not getting an updated COVID-19 vaccine

Researchers described reasons cited by adults for receiving or not receiving COVID-19 booster vaccines.

24 Jan 2023

Omicron News and Research

Risk factors for Omicron reinfections among previously infected frontline workers in the United States

Repeated COVID-19 vaccination may improve public health outcomes

Rapid engineering of novel SARS-CoV-2 therapeutic antibodies

Study assesses the sensitivity, specificity of rapid antigen tests and PCR tests for Omicron variant of COVID-19

Study: COVID-19 is a significant cause of death in children and young people in the U.S.

Third booster dose of SARS-CoV-2 vaccine associated with 90% reduction in COVID-19 deaths

Does a second monovalent SARS-CoV-2 mRNA booster increase neutralizing activity to Omicron variants in nursing home residents and healthcare workers?

Study suggests robust lung mucosal immunity against SARS-CoV-2 can be better achieved through hybrid immunity, as opposed to peripheral vaccination alone

COVID vaccines and first boosters provided protection to pregnant women during Omicron surge

FDA experts are still puzzled over who should get which covid shots and when

Prenatal MRI helps visualize SARS-CoV-2 infection-induced abnormalities in the placenta and fetuses

Florida Gov. Desantis falsely claims bivalent booster boosts chances of covid infection

Updated bivalent mRNA booster protects against circulating SARS-CoV-2 variants

FDA briefing discusses different COVID-19 vaccination regimens

Data demonstrates SARS-CoV-2 Omicron XBB.1.5 substantially escapes NAb responses after bivalent mRNA boosting

Maternal and perinatal outcomes of women infected with SARS-CoV-2 during the Omicron wave in Italy

Study points at low uptake of COVID-19 vaccine boosters by immunocompromised people in the US

A new report examines the safety of bivalent COVID boosters among 1.7 million over-50s

Mosaic RBD nanoparticles offer 100% protection against SARS-CoV-2 in animal model

Survey of previously vaccinated US residents finds the most common reasons for not getting an updated COVID-19 vaccine

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