Health
BA.2 Omicron Variant: What We Know About the “Stealth” COVID Variant
BA.2, a subvariant of the Omicron variant of COVID-19, continues to spread around the world. Preliminary research suggests that it may be more infectious than Omicron, but it does not cause more serious illness.
Currently, research on this variant, reported in more than half of the US states, is ongoing.
This is what we have ever known
What is BA.2?
The virus can mutate into new variants as “protection” and continue to circulate.Virus invades Variants and subvariants with similar characteristics However, there are slight biological changes. Omicron variant is a general term that includes four subvariants, BA.1, BA.2, BA.3, and B.1.1.529.
BA.2 is believed to have 20 more mutations Peplomer compared to the original Omicron variant.
Where does BA.2 spread?
BA.1 is the major omicron subvariant in circulation around the world, but BA.2 is spreading rapidly in some places.
BA.2 subvariants have been detected in at least 55 countries. 25 states in the United States, according to Outbreak.infoScripps Research Data Project.
European countries, especially Denmark The countries most affected by the subvariants. In Denmark, one of the first locations to identify the BA.2 epidemic, more than 50,000 new infections were reported in 5.8 million countries last week. It is also increasing in India, Qatar, Nepal and the Philippines.
BA.2 is currently in low-level distribution in the United States. Officials said.
What is a “stealth” variant?
BA.2 has been Called the “stealth” variant Due to its configuration, certain types of COVID tests can be difficult to detect. The World Health Organization does not classify it as a “variant of concern,” but it continues to monitor its spread.
Is BA.2 more contagious?
Early research shows that BA.2 may be more common It is more contagious than the original Omicron strain, BA.1.
Is BA.2 more stringent?
BA.2 does not appear to cause more serious illness than BA.1. in general, Omicron does not cause the same severe illness as other COVID-19 strains.
Is vaccination protected from BA.2.
Studies have shown that existing vaccines provide about the same level of protection from BA.2 as they do against BA.1.
According to CNBCThe booster dose was 70% effective in preventing symptomatic disease from BA.2 2 weeks after receiving the shot, compared to 63% efficacy of the original Omicron strain.
Centers for Disease Control and Prevention directly Dr. Rochelle Walensky I confirmed this at a recent White House briefing.
“For early studies, no studies suggested that it was more severe, nor did any studies suggest that Omicron would avoid the vaccine more than it already has. In fact, our vaccine works the same as Omicron, “Walensky said.
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