Omicron News and Research

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New perspective on SARS-CoV-2 breakthrough infections and booster shot restoration of vaccine efficacy

A recent article published in the journal Science explains how SARS-CoV-2 variants can bypass vaccine-induced immune defenses. However, immunity is restorable with a booster shot. The paper's authors outlined the importance of a booster shot in maintaining immunity and preventing severe infection.

18 Jan 2022

Analyzing disease severity of SARS-CoV-2 Omicron variant using RNA dependent RNA polymerase target delay

In a new study, a team of researchers compared the severity of the SARS-CoV-2 Omicron variant to the Delta variant using the PCR proxy marker of RNA dependent RNA polymerase target delay.

18 Jan 2022

Exploring the viral dynamics of SARS-CoV-2 Omicron variant

In a new study, researchers posted findings in which they investigated the viral dynamics of the SARS-CoV-2 Omicron variant.

18 Jan 2022

Dynamics of outbreaks of SARS-CoV-2 variants of concern

In a new study, researchers characterized the features of the outbreak duration of the novel SARS-CoV-2 variants of concern.

18 Jan 2022

Study shows several low- and middle-income countries at over 50% risk of undetected Omicron transmission

In a new study, researchers estimated the probability of undetected emergence of the SARS-CoV-2 Omicron variant in 25 low and middle-income countries by early December 2021.

18 Jan 2022

Forecasting the temporal evolution of Omicron infections

In a new study, researchers estimated the rate of SARS-CoV-2 Omicron infections by modeling temporal evolution of the Omicron wave.

18 Jan 2022

Officials struggle to regulate pop-up covid testing sites — and warn patients to beware

In recent months, mobile covid-19 testing tents and vans have sprouted on urban sidewalks and street curbs as demand has skyrocketed in response to the rapid spread of the omicron variant.

18 Jan 2022

Exploring SARS-CoV-2 Omicron variant’s neutralizing capacity of booster vaccines

In a new study, researchers analyzed the neutralization of SARS-CoV-2 Omicron and D614G variants before and after subjects received COVID-19 booster vaccinations.

18 Jan 2022

Researchers report isolation of potently neutralizing antibodies against highly transmissible SARS-CoV-2 variants

A recent preprint discusses using a combinatorial phage-display library approach to COVIID-19 antibodies.

18 Jan 2022

Immune responses in Omicron breakthrough COVID-19

A recent study examined the question as to whether vaccination protects against Omicron infection by assessing breakthrough infection rates in participants at a superspreader event.

18 Jan 2022

Transmission of Omicron in a quarantine hotel between two vaccinated individuals across a corridor

A recent study has reported a community outbreak of imported SARS-CoV-2 Beta variant, owing to intra-hotel transmission in a DQH.

17 Jan 2022

South African study confirms SARS-CoV-2 Omicron less severe than Delta even for unvaccinated

Researchers compare the outcomes of the fourth and previous waves of the COVID-19 pandemic in South Africa.

17 Jan 2022

Seroepidemiologic surveys for assessment of the COVID-19 pandemic in Japan

In a new study, a team of researchers demonstrated that Japan had witnessed a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Delta variant-induced endemic between August and December 2021.

17 Jan 2022

Better global health equality could prevent emergence of future SARS-CoV-2 variants of concern

In a new study, researchers used a simple phenomenological model to investigate the role of immunocompromised hosts in SARS-CoV-2 antigenic development.

17 Jan 2022

Study suggests vaccinated Omicron cases are unlikely to shed infectious virus 10 days after diagnosis or symptom onset

Researchers have been investigating the Omicron epidemic in Japan and have recently released an early report on the infectious period of the disease.

17 Jan 2022

Study demonstrates that intra-host SARS-CoV-2 variants with reduced infectivity are developed during infection

A new paper discusses the appearance of quasi-species in a single host with prolonged infection, with different rates of infectivity and sensitivity to neutralization by antibodies elicited by the Pfizer vaccine or those present in convalescent plasma.

17 Jan 2022

Mutations in SARS-CoV-2 Omicron variant promote cell binding

Researchers in Germany, based on their recent study published in the journal ChemBioChem, have proposed that the elevated occurrence of positively charged amino acids in specific domains of the severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2) Omicron variant spike protein improves viral binding to cellular negatively charged receptors aiding in enhanced infectiousness.

16 Jan 2022

WHO's recommendation provides two new options for treating COVID-19

WHO has recommended two new drugs for COVID-19, providing yet more options for treating the disease. The extent to which these medicines will save lives depends on how widely available and affordable they will be.

16 Jan 2022

Rapid antigen test for SARS-CoV-2 proves to be highly accurate for pediatric populations

In a large prospective study of just over 1,000 patients ages 17 and younger who were seen at the Baltimore Convention Center Field Hospital (BCCFH) testing site during a seven-month period last year, researchers from Johns Hopkins Medicine and collaborating institutions report that a rapid antigen test for SARS-CoV-2 — the virus that causes COVID-19 — proved highly accurate when compared to the established standard virus detection method: the polymerase chain reaction (PCR).

16 Jan 2022

Study shows Omicron less severe than Delta among COVID-19 hospitalized patients

New research posted to the medRxiv* preprint server suggests the Omicron variant produces less severe COVID-19 symptoms than earlier severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants.

16 Jan 2022

Omicron News and Research

New perspective on SARS-CoV-2 breakthrough infections and booster shot restoration of vaccine efficacy

Analyzing disease severity of SARS-CoV-2 Omicron variant using RNA dependent RNA polymerase target delay

Exploring the viral dynamics of SARS-CoV-2 Omicron variant

Dynamics of outbreaks of SARS-CoV-2 variants of concern

Study shows several low- and middle-income countries at over 50% risk of undetected Omicron transmission

Forecasting the temporal evolution of Omicron infections

Officials struggle to regulate pop-up covid testing sites — and warn patients to beware

Exploring SARS-CoV-2 Omicron variant’s neutralizing capacity of booster vaccines

Researchers report isolation of potently neutralizing antibodies against highly transmissible SARS-CoV-2 variants

Immune responses in Omicron breakthrough COVID-19

Transmission of Omicron in a quarantine hotel between two vaccinated individuals across a corridor

South African study confirms SARS-CoV-2 Omicron less severe than Delta even for unvaccinated

Seroepidemiologic surveys for assessment of the COVID-19 pandemic in Japan

Better global health equality could prevent emergence of future SARS-CoV-2 variants of concern

Study suggests vaccinated Omicron cases are unlikely to shed infectious virus 10 days after diagnosis or symptom onset

Study demonstrates that intra-host SARS-CoV-2 variants with reduced infectivity are developed during infection

Mutations in SARS-CoV-2 Omicron variant promote cell binding

WHO's recommendation provides two new options for treating COVID-19

Rapid antigen test for SARS-CoV-2 proves to be highly accurate for pediatric populations

Study shows Omicron less severe than Delta among COVID-19 hospitalized patients

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