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名詞

Eta variant

1. The B.1.525 strain of the SARS-CoV-2 virus that causes COVID-19.
   • 2021 August 8, Boccuto A., Dragoni F., Bergna A., Ventura CD., Giammarino F., Saladini F., Pezzati L., Zehender G., Zazzi M., Vicenti I., Lai A., “Decreased neutralization of the Eta SARS-CoV-2 variant by sera of previously infected and uninfected vaccinated individuals”, in Journal of Infection, →DOI:

     To test this hypothesis, we measured the serum neutralizing antibody (NtAb) response to Eta variant, as well as to other viral variants, in a cohort of health care workers (HCWs) including both previously infected (n = 15) and uninfected individuals (n = 15) vaccinated with two doses of the BNT162b2 COVID-19 mRNA vaccine.

   • 2022 February 24, Pragya D. Yadav, Dimpal A. Nyayanit, Nivedita Gupta, Jayanthi Shastri, Rima R. Sahay, Deepak Y. Patil, Anita M. Shete, Alpana Razdan, Sachee Agrawal, Abhinendra Kumar, et al., “Detection and isolation of SARS-CoV-2 Eta variant from the international travelers and local residents of India”, in Journal of Medical Virology, →DOI:

     As per WHO, the Eta variant is different from all other variants because it carries both E484K and F888L mutations.

   • 2025, Gnimadi, T.A.C.; Kadio, K.J.-J.O.; Mathew, M.J.; Diallo, H.; Soumah, A.K.; Keita, A.K.; Hounmenou, C.G.; Fernandez-Nuñez, N.; Vidal, N.; Guichet, E.; et al., “Genetic Diversity and Spatiotemporal Distribution of SARS-CoV-2 Variants in Guinea: A Meta-Analysis of Sequence Data (2020–2023)”, in Viruses, volume 17, number 2, page 204:

     We identified dense clusters as well as some scattered sequences for the Alpha, Delta, and Omicron variants (BA.1, BA.5, and XBB.1) and the sublineages. In contrast, for the Eta variant and Omicron sublineages BA.2 and BQ.1, we observed a significant dispersion of sequences throughout the phylogenetic trees.

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