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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 ...
Hemoglobin variants occur when there are mutations in specific genes that code for the protein chains, known as globins, which make up the hemoglobin molecule. This leads to amino acid substitutions in the hemoglobin molecule that could affect the structure, properties, and/or the stability of the hemoglobin molecule.
“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 COVID-19 pandemic was the third leading cause of death globally in 2020 and the second in 2021, according to a recent World Health Organization report.The almost 13 million lives lost during ...
KP.3.1.1 is still the dominant COVID-19 variant in the United States as it accounts for nearly 60% of positive cases, but the new XEC variant is not far behind, recent Centers for Disease Control ...
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 ...
Current COVID-19 tests are expected to detect the XEC variant and other strains in circulation, the experts say. People should test if they have COVID-19 symptoms or an exposure.
Pages in category "Variants of SARS-CoV-2" The following 19 pages are in this category, out of 19 total. This list may not reflect recent changes. ...