Health
South African coronavirus mutant detected in re-infected cases in Brazil
Brasilia (Reuters)-Brazilian researchers have identified a new, concerned coronavirus variant first found in a woman infected with COVID-19 for the second time in South Africa, in the world’s first reported case. Said there is.
There are other cases of reinfection in Brazil, with South African variants previously detected, but researchers said reinfection with a mutation in the virus was the first.
Researchers at the D’Or Research and Teaching Institute (IDOR) said the incident involved a 45-year-old woman in northeastern Bahia after genetic sequencing of the viral infection.
“This mutation was recently confirmed in Rio de Janeiro, but it is the first time in the world that it has been associated with SARS-CoV-2 reinfection,” Bruno Solano, who led the study, said in a statement.
“In the gene sequence of the virus present in the second case, we observed the mutation E484K, the first mutation identified in South Africa and causing many concerns in the medical field. It is an antibody against the virus. “Sorano said.
The results of the study will be published in the Lancet Medical Journal. Case report () Was published Wednesday prior to peer review on the Preprints.org website.
Researchers said a woman who lived in the city of Salvador was infected twice. The first time is May 20th and then October 26th. The researchers reported that the second time the symptoms were stronger.
Brazil suffers from the world’s second most deadly coronavirus outbreak after the United States, killing more than 200,000 people and confirming 8 million. Right-wing President Jair Bolsonaro, who has minimized the severity of highly contagious diseases, is faced with criticism that he is slow to respond to the health crisis.
The evolution of the coronavirus has raised concerns that certain mutations may allow the virus to evade immunity from previous infections or vaccines.
So far, there is no strong evidence to suggest that any of the many mutants circulating in the world are so different that the immune system does not recognize them after encountering another.
Cases of reinfection are thought to occur because people have insufficient immune protection remaining from the initial infection.
Preliminary results from a laboratory study released Thursday awaiting peer review show that Pfizer and BioNTech SE’s COVID-19 vaccine continues against new highly infectious variants found in the United Kingdom and South Africa. We have shown that it is likely to be valid.
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