COVID-19 variants: Whats the concern? - Mayo Clinic What's the concern about COVID-19 variants? Are they more contagious? Concern over variants, sometimes called strains, of the virus that causes COVID-19 is based on how the virus might change
Variants Happen | NCIRD - CDC These changes – or variants – happen when viruses infect cells and begin to reproduce, and some of the resulting copies contain errors Sometimes these changes enable the new variant to spread more quickly or effectively
Variants of SARS-CoV-2 - Wikipedia Variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are viruses that, while similar to the original, have genetic changes that are of enough significance to lead virologists to label them separately SARS-CoV-2 is the virus that causes coronavirus disease 2019 (COVID-19)
CoVariants CoVariants provides an overview of SARS-CoV-2 variants and mutations that are of interest Here, you can find out what mutations define a variant, what impact they might have (with links to papers and resources), where variants are found, and see the variants in Nextstrain builds!
CDCs Role in Tracking Variants | COVID-19 | CDC The program provides a comprehensive surveillance system for the United States to track virus evolution over time and identify emerging variants that may affect the performance of diagnostics, therapeutics, or vaccines, or that impact the transmissibility of SARS-CoV-2 or severity of COVID-19
COVID Variants and Strains - WebMD In late 2023, the World Health Organization listed nine variants as circulating at the time More than 50 variants have been identified; although some are no longer spreading COVID variants
COVID-19 variants | WHO COVID-19 dashboard - datadot When these changes become significantly different to a previously detected virus, these new virus types are known as “variants ” To identify variants, scientists map the genetic material of viruses (known as sequencing) and then look for differences between them to see if they have changed
KP. 3. 1. 1 is the Predominant Variant as COVID-19 Activity Increases KP 3 1 1, of the Omicron family, is now the predominant SARS-CoV-2 variant circulating in the United States, having overtaken its parent linage KP 3 and previous KP 2 variants KP 3 1 1 is the only major variant increasing in proportion nationally