Author: coronavirusnews

Delta Variant Is 60% More Contagious Than Original COVID Virus and Can Escape Immunity

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The Delta variant is more contagious than original SARS-CoV-2 and better able to escape prior immunity, according to modeling studies of coronavirus variants. Researchers at Columbia University Mailman School of Public Health used a computer model to estimate that the Delta variant is around 60 percent more contagious than the original SARS-CoV-2 virus and can escape immunity from prior infection roughly half of the […]

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Scientists Discover Opportunity To Disrupt SARS-CoV-2 Dynamics, Prevent COVID-19 Transmission

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A structural model of the SARS-CoV-2 spike protein as the virus fuses with host human cells reveals an opportunity to disrupt dynamics and halt transmission. Scientists have simulated the transition of the SARS-CoV-2 spike protein structure from when it recognizes the host cell to when it gains entry, according to a study published on August 31, 2021, in eLife. The research shows that […]

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New Study of Extra COVID-19 Vaccine Dose in People With Autoimmune Disease

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Trial also will test pausing immunosuppressive medication to improve antibody response. The National Institutes of Health has begun a clinical trial to assess the antibody response to an extra dose of an authorized or approved COVID-19 vaccine in people with autoimmune disease who did not respond to an original COVID-19 vaccine regimen. The trial also will investigate whether pausing immunosuppressive therapy for […]

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WHO monitoring ‘mu’ variant in Colombia and Ecuador

‘mu’ variant

Mu variant identified in Colombia may be more resistant to vaccines A new coronavirus variant, named mu, has been designated a variant of interest by the World Health Organisation (WHO). Mu, or B.1.621, was first identified in Colombia and cases have been recorded in South America and Europe. The WHO’s weekly bulletin on the pandemic said the variant has mutations indicating “potential […]

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CDC: Unvaccinated, unmasked teacher caused community-wide outbreak in California

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An unvaccinated elementary school teacher in California infected more than half of her students with COVID-19, ultimately resulting in a community-wide outbreak in Marin County, a report from the Centers for Disease Control and Prevention found. Why it matters: The outbreak, which took place in May, highlights the stakes surrounding a debate across the U.S. among school districts considering implementing stricter measures to […]

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Study Reveals Declining COVID-19 Vaccine Efficacy Against Infection

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Post-COVID-19 vaccine immunity seems to be waning, according to a report published yesterday (August 24) in the US Centers for Disease Control and Prevention’s Morbidity and Mortality Weekly Report.  The study followed more than 4,000 healthcare workers and other frontline essential workers across six states for 35 weeks, testing study participants weekly for SARS-CoV-2 infection, according to STAT. The majority of the participants […]

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Hidden SARS-CoV-2 “Gate” Discovered – Opens To Allow COVID Infection

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Supercomputing-derived movies reveal details of deceptive sugar coating on spike protein, presenting new possibilities to block cell entry and infection. Since the early days of the COVID pandemic, scientists have aggressively pursued the secrets of the mechanisms that allow severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) to enter and infect healthy human cells. Early in the pandemic, University of California […]

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Blood clot risk higher after infection than vaccination

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Study compares risk of blood clotting problems after covid-19 infection and vaccination The risk of blood clotting problems is much higher after covid-19 infection than after receiving a covid-19 vaccine, according to research from the University of Oxford. The study, published in the British Medical Journal, looked at more than 29 million people aged 16 or older who had a first dose […]

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Synthetic Peptide Mimics: Possible New Antivirals Against COVID-19 and Herpes

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In addition to antibodies and white blood cells, the immune system deploys peptides to fight viruses and other pathogens. Synthetic peptides could reinforce this defense but don’t last long in the body, so researchers are developing stable peptide mimics. Today, scientists report success in using mimics known as peptoids to treat animals with herpes virus infections. These small synthetic molecules […]

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What You Need To Know About COVID-19 Booster Shots and Third Vaccine Doses

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University of Chicago Assoc. Prof. Emily Landon answers common questions about additional vaccine doses. Increasingly, research shows many people who have weakened immune systems haven’t been able to receive full protection from their COVID-19 vaccines. Unlike healthy people who’ve been vaccinated against SARS-CoV-2, the virus that causes COVID-19, immunocompromised people’s bodies may not produce enough protective antibodies after two doses of the COVID-19 vaccines. […]

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