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Are new variants making it easier to become reinfected? This family of omicron subvariants transmit more effectively than any other variant we've seen so far. They evade a large portion of the vaccine induced immunity; you're protected from the severe disease, but can get infected. Omicron was a complete game-changer when it emerged.
The new omicron subvariant XBB.1.16, or arcturus, was responsible for 15% of new coronavirus cases over the past two weeks, according to estimates from the Centers for Disease Control and...
Two new Omicron subvariants— BA.4 and BA.5, first identified in South Africa between January and February—are gaining steam in the United States, according to the latest estimates by the ...
Among the changes, Omicron is more transmissible and better at evading existing antibodies. “To me, the biggest shift, the most shocking thing, is how incredibly infectious this thing is.
The BA.2 subvariant edged out the original omicron strain (also known as BA.1) for the dominant spot after the winter surge, essentially rendering it obsolete. And BA.2.12.1 “might have a transmission advantage of about 25 percent over the BA.2 subvariant,” CDC Director Rochelle Walensky said in an April 26 news briefing.
The latest mutations in the genetic makeup of the SARS-CoV-2 virus have not been significantly different from the last major variant, Omicron, and the symptoms of infections are relatively milder.
Since May 17, 2023, Acrux has been under surveillance by the WHO (variants under monitoring, VUM) along with six other corona variants (as of May 25, 2023). Acrux is already circulating in 53 countries. The first cases appeared in India in December 2022 and have been increasing significantly since March.
May 26, 2023 9:58 AM EDT. WASHINGTON — About 10% of people appear to suffer Long COVID after an omicron infection, a lower estimate than earlier in the pandemic, according to a study of nearly ...
Three Omicron subvariants (BA.1, BA.2, and BA.3) were discovered near simultaneously as the Omicron wave started where BA.1 and BA.2 have many common mutations. More recently, both BA.4 and BA.5 were detected in South Africa. Citation 7. The spike and RBD of the Omicron variant have about 30 mutations.
The SARS-CoV-2 Omicron variant has dominated the COVID-19 pandemic since late 2021, bringing ≥3 waves of increasingly immunity-evasive Omicron subvariants. An early wave of the Omicron...