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The rise of the COVID-19 Omicron subvariant XBB.1.5 is the product of a potent mix of mutations that make it easier to spread broadly, including among those who have been previously infected or vaccinated. That means there are higher chances for reinfection or breakthrough infections.
COVID-19 Live Updates: In the last couple of weeks, the United States has seen a massive jump in its daily COVID-19 cases, primarily triggered by the Omicron XBB.1.5 subvariant. The variant comes...
The smallest boost was seen for antibodies that defend against some of the newer Omicron subvariants that have more antibody-evading mutations, such as BQ.1.1 and XBB (the current dominant strain ...
Omicron spawn XBB.1.5, also known as “Kraken,” now dominates the U.S. COVID variant scene, comprising an estimated 61% of cases, according to federal health data released Friday. But there's now...
Researchers said they found it “astonishing” that CH.1.1 and another new variant could evade immunity more easily than XBB and BQ subvariants. However, China’s CDC says that the mutation found in CH.1.1 is present in subvariants like BA. 5.3 and BA. 5.1.3. It is unclear if it could cause more severe symptoms of the disease.
Omicron spawn XBB.1.5, also known as “Kraken,” now dominates the U.S. COVID variant scene, comprising an estimated 61% of cases, according to federal health data released Friday. But there’s now...
In recent months, the emergence of new, more immune-evasive subvariants has triggered a huge wave of infections and reinfections. Dr Turville, from the Kirby Institute, said although the subvariants in circulation were genetically "very diverse", there was no evidence to suggest any were causing more serious disease.
Another two dominant Omicron subvariants BQ.1 and BQ.1.1 accounted for about 30 percent of new COVID-19 cases in the United States in the latest week, CDC data showed.
The injection was pulled however because it was deemed as no longer being effective against 95% of the omicron subvariants, including XBB subvariants responsible for as many as 64% of new cases in ...
A total of 613 new cases of Omicron subvariants of the Covid-19 virus were detected, the Department of Health (DOH) said. The DOH said that 694 positive samples underwent genome sequencing that was conducted by the University of the Philippines – Philippine Genome Center (UP-PGC) last Jan. 28. Out of the recent 694 samples, 252 cases were ...
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SARS-CoV-2 Omicron variantCOVID-19
The Omicron variant is a variant of SARS-CoV-2, the virus that causes COVID-19. It was first reported to the World Health Organization (WHO) from South Africa on 24 November 2021. On 26 November 2021, the WHO designated it as a variant of concern and named it "Omicron", the fifteenth letter in the Greek alphabet. wikipedia.org
- On 24 November 2021, the variant was first reported to the WHO from South Africa, based on samples that had been collected from 14 to 16 November.
- The Omicron variant likely will spread more easily than the original SARS-CoV-2 virus and how easily Omicron spreads compared to Delta remains unknown. CDC expects that anyone with Omicron infection can spread the virus to others, even if they are vaccinated or don’t have symptoms.
- More data are needed to know if Omicron infections, and especially reinfections and breakthrough infections in people who are fully vaccinated, cause more severe illness or death than infection with other variants.
- Current vaccines are expected to protect against severe illness, hospitalizations, and deaths due to infection with the Omicron variant. However, breakthrough infections in people who are fully vaccinated are likely to occur.
Information from the CDC
