The World Health Organization has identified a subvariant of the Covid Delta strain that is on the upsurge in the United Kingdom.
AY.4.2, which has been found in all but 12 locations of England, is thought to be up to 15% more infectious than its extremely virulent predecessor.
As part of their investigation into whether or not this strain is more contagious than others, UK health officials labelled it a “variant under investigation” last week.
The WHO is now also paying close attention to AY.4.2, dedicating an entire segment of its weekly epidemiological report to the new strain.
As of October 25, the United Nations agency announced that more than 26,000 instances of the offshoot had been recorded from 42 countries.
According to the data, the new variant now accounts for 10% of all new cases, up from 5% just one month earlier.
More research on whether AY.4.2 is more infectious or deadly is currently underway, according to the WHO study.
While the United Kingdom has collected the great majority of the world’s AY.4.2 samples, there are indicators that outbreaks are spreading to other nations.
According to the most recent surveillance data, AY.4.2 accounts for around 16% of all Covid cases in Poland.
In June, AY.4.2 was discovered for the first time in the United Kingdom, where it has since spread throughout the country.
Despite the fact that it has not been formally named, it is likely to be referred to as the Nu variant in the Greek alphabetical scheme used for identifying new strains of the Covid virus.
The mutation, which alters the structure of the place where antibodies attach, makes it more difficult for them to prevent infection, is of more concern.
Scientists believe that this is a result of mutations in Delta and that it has the potential to make the subtype even more resistant to vaccinations than its original.
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