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2022年6月22日 · We evaluated neutralizing antibody titers against the reference WA1/2020 isolate of SARS-CoV-2 along with omicron subvariants BA.1, BA.2, BA.2.12.1, and BA.4 or BA.5 in 27 participants who had ...
2022年5月5日 · First there was BA.2, which became dominant in the U.S. earlier this spring. Now, another Omicron descendent known as BA.2.12.1 is accounting for a growing share of U.S. cases—about 36% of ...
2022年11月25日 · Furthermore, applying antibody depletion, we showed that neutralization of BA.2 and BA.4/BA.5 sublineages by BA.2 convalescent sera is driven to a considerable extent by antibodies targeting the N-terminal domain (NTD) of the spike glycoprotein. However, neutralization by Omicron BA.1 convalescent sera depends exclusively on antibodies ...
编. Omicron [註 1] （ B.1.1.529）是 嚴重急性呼吸綜合症冠狀病毒2型 （SARS-CoV-2）的一種 變異株 。. [14] [15] 它於2021年11月9日首次在 波札那 被發現 [16] 。. 2021年11月24日 南非 正式向 世界衛生組織 （WHO）報告 [17] 。. 由于Omicron变异株显示较强的传染性及影响宿主免疫 ...
2022年5月24日 · Another form of the Omicron subvariant BA.2 has become the dominant version among new U.S. coronavirus cases, according to federal estimates on Tuesday, a development that experts had forecast ...
BA.1 infection can also induce new clones of BA.1-specific antibodies that potently neutralize BA.1. Nevertheless, these neutralizing antibodies are largely evaded by BA.2 and BA.4/BA.5 owing to D405N and F486V mutations, and react weakly to pre-Omicron variants, exhibiting narrow neutralization breadths. The therapeutic neutralizing antibodies ...
2022年4月19日 · What is the BA.2.12.1 omicron variant? The omicron subvariant, an offshoot of the BA.2 variant, now accounts for 1 in 5 new Covid cases, the CDC says.
