Suara.com – A research that is still peer-review reported that there were seven new variants of the SARS-CoV-2 corona virus in the United States, on Sunday (14/2/2021) yesterday.
Researchers are tracking the virus variants because some of them may be more virulent than the original virus and may be more contagious and impact the effectiveness of the Covid-19 vaccine.
Based on Indian ExpressUntil now, only three variants have been identified, namely:
– B.1.1.7 from the UK and may be associated with an increased risk of death compared to other variants, says the US Centers for Disease Control and Prevention (CDC),
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– B.1.351 from South Africa which emerged independently of the British variant. Reported to be in the US at the end of January.
– P.1 is of Brazilian origin and has 17 unique mutations. Three of these are in the spike protein receptor binding domain, the ‘tool’ of the virus to infect human cells.
The seven new lineages recorded by the researchers have all developed mutations in the same genetic letter, affecting the way the virus enters human cells.
However, it is not clear whether this mutation makes the new variant more infectious and more dangerous.
The authors of the recent study say in areas where viral prevalence is high, selection pressure may favor the emergence of new variants that avoid neutralizing antibodies (proteins that prevent the virus from infecting more cells in the body).
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They also say that there may be more variants of the virus around the world, but only genome sequencing can help determine them. But unfortunately this is not quite the case.
Source: Suara.com – Informasi Berita Artikel Kesehatan Terkini by www.suara.com.
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