The new Omicron subvariant BA.2: what we know so far

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant of concern has spread rapidly since its emergence in late 2021. Presently, an Omicron subvariant known as BA.2, first identified in late 2021, has made headlines due to its rapid spread. Image Credit: Dkoi/Shutterstock.com Omicron mutated into sister sublineage BA.2 While Omicron has approximately 60 mutations, it is thought that […]

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New study suggests two paths toward ‘super immunity’ to COVID-19

New laboratory research from Oregon Health & Science University reveals more than one path toward robust immunity from COVID-19. A new study finds that two forms of immunity—breakthrough infections following vaccination or natural infection followed by vaccination—provide roughly equal levels of enhanced immune protection. The new study published online today in the journal Science Immunology. “It makes no difference whether […]

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Heterologous vaccine schedule provides extraordinary response to third dose of coronavirus vaccines

A third, booster dose of either the ChAdOx1 nCoV-19 (Oxford-AstraZeneca), BNT162b2 (Pfizer-BioNTech), AD26.COV2-S (Janssen) or CoronaVac (SinoVac) coronavirus vaccine induce a significant increase in antibody levels in those who have previously received two doses of CoronaVac. The strongest responses were seen with mixed schedules, including against the Delta and Omicron variants of concern. The results from a study funded by […]

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Expressions of Concern Mount for Heart Researchers

A group of heart researchers in China now have four expressions of concern, along with a retraction, for questions about the reliability of their data. The latest expressions of concern for the team, led by Bu Lang Gao, of Shijiazhuang First Hospital of Hebei Medical University, involves a 2019 paper in Springer Nature’s Scientific Reports titled “Asymmetrical middle cerebral artery […]

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Is this why some people get sicker than others with Covid-19?

Is this why some people get sicker than others with Covid-19? Immune cells called autoantibodies could help explain our vulnerability to infection Why are some people affected more severely by infections, including Covid? It’s a question that’s perplexed scientists but now they think they know part of the answer at least: autoantibodies. Not only might they help explain our vulnerability […]

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FDA Halts Use of Some COVID Monoclonal Antibodies Due to Omicron

Editor’s note: Find the latest COVID-19 news and guidance in Medscape’s Coronavirus Resource Center. The US Food and Drug Administration (FDA) has revised the emergency use authorization (EUA) for two monoclonal antibody combinations to treat mild to moderate COVID-19, halting their use, for now, because they are not effective against the dominant Omicron variant. They are bamlanivimab combined with etesevimab […]

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‘Yes, And…’: How Improv Can Improve Bedside Manner

When one considers improvisational theater or improv, visions of the scuffed floors of a community theater or reruns of the television show Whose Line Is It Anyway? may come to mind. Images of actors shrugging off inhibitions to embody different characters and scenarios instantaneously, or the desperate attempt not to giggle and break character, are plenty. When one considers a […]

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