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The term variant of concern (VOC) for SARS-CoV-2, which causes COVID-19, is a category used for variants of the virus where mutations in their spike protein receptor binding domain (RBD) substantially increase binding affinity (e.g., N501Y) in RBD-hACE2 complex (genetic data), while also being linked to rapid spread in human populations ...
“Variants that can infect people better or evade immunity to the last variant are more likely to cause a new COVID wave,” Peter Kasson, M.D., Ph.D., B.S., of the University of Virginia’s ...
The CDC and WHO assessed that the "public health risk posed by this variant is low compared with other circulating variants". [23] Moderna and Pfizer have stated that their COVID-19 vaccines targeted at the omicron variant remain effective against BA.2.86 [ 24 ] and Novavax has stated its updated protein-based COVID-19 vaccine appears effective ...
Nearly all COVID-19 cases in the United States right now are being caused by one, highly contagious variant called JN.1. The fast-spreading omicron subvariant currently accounts for over 93% of ...
The new "FLiRT" COVID-19 variants, including KP.3 and KP.2, are spreading in the United States. Will there be a summer surge? Experts discuss transmission, symptoms, and vaccines.
The EMA also initiated an assessment for all COVID‑19 vaccines used in the EU for immune thrombocytopenia (ITP), described as low blood platelet levels that could lead to bruising and bleeding, as a possible side effect, whilst also stating that up to this point no link with any COVID‑19 had been established. [12]
That does appear to be the next variant," Topol added. "But it's months off from getting into high levels." ... 22.5% of U.S. adults and 29.1% of a subset of seniors 65 and older got the COVID-19 ...
In December, studies, some of which using large nationwide datasets from either Israel and Denmark, found that vaccine effectiveness of multiple common two-dosed COVID-19 vaccines is substantially lower against the Omicron variant than for other common variants including the Delta variant, and that a new (often a third) dose – a booster dose ...