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  2. SARS-CoV-2 Delta variant - Wikipedia

    en.wikipedia.org/wiki/SARS-CoV-2_Delta_variant

    It has mutations in the gene encoding the SARS-CoV-2 spike protein [6] causing the substitutions T478K, P681R and L452R, [7] [8] which are known to affect transmissibility of the virus as well as whether it can be neutralised by antibodies for previously circulating variants of the COVID-19 virus. [9]

  3. Variants of SARS-CoV-2 - Wikipedia

    en.wikipedia.org/wiki/Variants_of_SARS-CoV-2

    A study of samples collected in Manaus between November 2020 and January 2021, indicated that the Gamma variant is 1.4–2.2 times more transmissible and was shown to be capable of evading 25–61% of inherited immunity from previous coronavirus diseases, leading to the possibility of reinfection after recovery from an earlier COVID-19 ...

  4. BA.2.86 - Wikipedia

    en.wikipedia.org/wiki/BA.2.86

    BA.2.86 is notable for having more than thirty mutations on its spike protein relative to BA.2. [1] The subvariant , which was first detected in a sample from 24 July 2023, [ 2 ] is of concern due to it having made an evolutionary jump on par with the evolutionary jump that the original Omicron variant had made relative to Wuhan-Hu-1, the ...

  5. SARS-CoV-2 Omicron variant - Wikipedia

    en.wikipedia.org/wiki/SARS-CoV-2_Omicron_variant

    One week later, on 3 December 2021, the NICD announced that 65,990 COVID-19 tests had found 16,055 new infections (5.7 times as many as seven days before; positive rate 24.3%) and that 72 percent of them were found in Gauteng.

  6. BRAF (gene) - Wikipedia

    en.wikipedia.org/wiki/BRAF_(gene)

    B-Raf is a 766-amino acid, regulated signal transduction serine/threonine-specific protein kinase.Broadly speaking, it is composed of three conserved domains characteristic of the Raf kinase family: conserved region 1 (CR1), a Ras-GTP-binding [11] self-regulatory domain, conserved region 2 (CR2), a serine-rich hinge region, and conserved region 3 (CR3), a catalytic protein kinase domain that ...

  7. Second gentleman Doug Emhoff tests positive for COVID ... - AOL

    www.aol.com/lifestyle/second-gentleman-doug...

    Second Gentleman Doug Emhoff has tested positive for COVID-19 after experiencing mild symptoms, his office announced Sunday, but his wife, Vice President Kamala Harris, has tested negative and ...

  8. SARS-CoV-2 lineage B.1.617 - Wikipedia

    en.wikipedia.org/wiki/SARS-CoV-2_lineage_B.1.617

    Here are some of the common mutations present in the spike protein of lineage B.1.617. Not all sublineages of B.1.617 share the same mutations: L452R. The substitution at position 452, a leucine-to-arginine substitution, confer stronger affinity of the spike protein for the ACE2 receptor and decreased recognition capability of the immune system.

  9. Former NBC anchor reveals she underwent mastectomy after ...

    www.aol.com/former-nbc-anchor-reveals-she...

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