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A end of 2020 was first identified strain B.1.351, better known as “Beta”. Discovered in South Africa and indicating the start of the second wave for that country. The variant began to be studied before its global expansion and the results showed that people infected with this strain they are more likely to need intensive care and die than people infected with other variants.
Laith Jamal Abu-Raddad, researcher at Waill Cornell Medicine in Qatar, is the one who studied and discovered that people infected with Beta were 25% more likely than those infected with Alfa to develop serious illness, about 50% more than requiring intensive care and 57% more than to die.
“It was very clear that we were talking about a more severe variant,” he said in a “Nature” article.
Beta, on the other hand, appears to be more resistant to immunity generated by vaccines and previous infections, even more than the Delta variant.
In another study, by Waasila Jassat, a specialist in public health medicine at the National Institute of Communicable Diseases in Johannesburg, South Africa, observed that about a 30% of infected people are more likely to die after hospitalization
Beta it is gradually disappearing in the countries which left the most damage (South Africa and Qatar). Currently, the Delta variant -derived from UK– is the one who became the main concern of epidemiologists due to its high transmissibility. Even so, specialists assure that the Beta strain could be a great complication in the fight against the pandemic.
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