On 29 March 2022, Omicron subvariant BA.2 overtook BA.1 and became the dominant strain in the US. [91] [92] [93] As of May 2022, BA.2.12.1 was spreading in the US and two new subvariants of Omicron named BA.4 and BA.5, first detected in January 2022, spread in …

Apr 28, 2022 · BA.2.12.1, a new descendant of the BA.2 subvariant of Omicron, is spreading quickly. Between April 16 and 23, 2022, the percentage of COVID-19 cases caused by the subvariant increased from...

Jan 31, 2022 · A new version of the Omicron variant, called BA.2 has been detected in many countries including in the U.S. Here's what we know so far.

Omicron variant (B.1.1.529) has been identified as a highly modified, contagious, and crucial variant among the five VOCs of SARS-CoV-2.

Mar 23, 2022 · The Omicron variant, officially known as B.1.1.529, of SARS-CoV-2 has three main subvariants in its lineage: BA.1, BA.2, and BA.3. The earliest omicron subvariant to be detected, BA.1, was first reported in November 2021 in South Africa.

The SARS-CoV-2 Omicron (B.1.1529) variant was designated as a variant of concern (VOC) by the World Health Organization (WHO) on November 26, 2021. Within two months, it had replaced the Delta variant and had become the dominant circulating variant around the world.

The present article highlights the emergence of SARS-CoV-2 Omicron variant, its salient features and high global health concerns, and strategies to tackle it amid the ongoing COVID-19 pandemic.

Dec 10, 2021 · The Omicron SARS-CoV-2 variant shows more than 30 mutations leading to amino-acid changes in the Spike sequence, 15 of them located in the Receptor-Binding Domain (RBD), which is key for viral-cell interaction mediated by ACE-2 receptor.

Dec 11, 2021 · On Nov 25, 2021, about 23 months since the first reported case of COVID-19 and after a global estimated 260 million cases and 5·2 million deaths, 1 a new SARS-CoV-2 variant of concern (VoC), omicron, 2 was reported. Omicron emerged in a COVID-19-weary world in which anger and frustration with the pandemic are rife amid widespread negative ...

Apr 4, 2022 · On March 22 the World Health Organization announced that the Omicron subvariant BA.2 had become the dominant form of SARS-CoV-2, the virus that causes COVID, worldwide. BA.2 shares many genetic...