Omicron BA.2 Lineage

Omicron BA.2 Lineage, the “Stealth” Variant: Is It Truly a Silent ...

The Omicron variant has five major sub-lineages; as of February 2022, the BA.2 lineage has been detected in several European and Asian countries.

SARS-CoV-2 Omicron variant - Wikipedia

As of 17 November 93% of sequences in France were Omicron sub-lineage BA.5 and among the BA.5 sub-lineages, BQ.1.1 continued to rise (32% vs 25% in the ...

Omicron BA.2 lineage predominance in severe acute respiratory ...

Recent studies on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) reveal that Omicron variant BA.1 and sub-lineages have ...

Omicron BA.2 Lineage: What do we know? - BV-BRC

Below we summarize experimental data relating to the BA.2 lineage of Omicron. Omicron Lineages. 5 Pango lineages fall under the “Omicron” designation (as of Feb ...

Statement on Omicron sublineage BA.2

The group reinforced that the BA.2 sublineage should continue to be considered a variant of concern and that it should remain classified as Omicron.

Emergence of SARS-CoV-2 Omicron lineages BA.4 and BA.5 in ...

We have now identified two new lineages, BA.4 and BA.5, responsible for a fifth wave of infections. The spike proteins of BA.4 and BA.5 are ...

Clinical severity of omicron lineage BA.2 infection compared with BA ...

SARS-CoV-2 incidence, transmission, and reinfection in a rural and an urban setting: results of the PHIRST-C cohort study, South Africa, 2020–21

Lineage BA.2 dominated the Omicron SARS-CoV-2 epidemic wave ...

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Distinct evolution of SARS-CoV-2 Omicron XBB and BA.2.86/JN.1 ...

Distinct evolution of SARS-CoV-2 Omicron XBB and BA.2.86/JN.1 lineages combining increased fitness and antibody evasion. Delphine Planas ...

Estimates of SARS-CoV-2 Omicron BA.2 Subvariant Severity in New ...

529) variant, or the Omicron BA.2 lineage subvariants. Main Outcomes and Measures The primary study outcome planned before analysis was risk of ...

An Imported Case of BA.2 Lineage of Omicron Variant COVID-19

The earliest BA.2 sequence was uploaded from South Africa on November 27, 2021 (7). The case in this study was the first BA.2 lineage discovered in China. The ...

Tracking SARS-CoV-2 variants - World Health Organization (WHO)

Statement on Omicron sublineage BA.2 · 31 May 2021. Departmental update. WHO ... Currently circulating variants under monitoring (VUMs) (as of 24 September 2024) ...

What is the BA.2 or “stealth” Omicron subvariant?

2, is 1.5 times more transmissible than the original Omicron strain. While there is currently no evidence that the BA.2 lineage is more severe ...

SARS-CoV-2 Variants - Omicron BA.1

... Omicron variant exhibits reduced pathogenicity due to altered cell tropism. BA.1, or B.1.1.529 is the 'standard' sublineage of Omicron variant.

Virological characteristics of the SARS-CoV-2 Omicron BA.2 spike

Phylogenetic and epidemic dynamics of BA.2. Omicron has been classified into three main lineages: BA.1, BA.2, and BA.3. As a sublineage of ...

Neutralization of the SARS-CoV-2 Omicron BA.1 and BA.2 Variants

... 2 infection, which was diagnosed during a time when the omicron BA.1 sublineage was responsible for more than 99% of new infections. The ...

The Omicron Lineages BA.1 and BA.2 (Betacoronavirus SARS-CoV ...

1 and BA.2 lineages of the Omicron variant in the country. The new sequences increase considerably the number of genomes from northern, ...

Omicron sublineage BA.2 remains a variant of concern - UN News

The BA.2 virus, a sublineage of the Omicron COVID-19 mutation, should continue to be considered a variant of concern, scientists convened by the World Health ...

Genomic Surveillance for SARS-CoV-2 Variants - CDC

... 2 lineages circulating at ≥1% prevalence remained Omicron descendant lineages. ... 2) to Omicron BA.1.1 (Figure 2). BA.2.86 prevalence has ...

Omicron subvariants BA.1 vs. BA.2: What the latest data say

1 subvariant started as the dominant Omicron lineage across the globe, since December 2021, the proportion of COVID-19 cases linked to the BA.2 ...