Study: British COVID-19 Variant Causes More Deaths
2021-03-11
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1Researchers say that a highly infectious variant of the new coronavirus is 30 percent to 100 percent more deadly than earlier strong variants.
2The variant was first found in Britain late last year and has since spread around the world.
3The new study compared death rates among people in Britain infected with the new variant to those infected with other versions of the virus.
4Scientists said that the new variant's death rate was "significantly higher."
5The variant is known as B.1.1.7.
6The B.1.1.7 was first found in Britain in September 2020.
7It has since been found in more than 100 other countries.
8It has 23 mutations in its genetic material and some of those changes make it spread more easily.
9Scientists say it is about 40 to 70 percent more infectious than earlier strong variants.
10In the British study, infection with the new variant led to 227 deaths in a group of nearly 55,000 COVID-19 patients.
11That is in comparison with 141 deaths among the same number of patients infected with other variants.
12The British variant also is able to spread quickly.
13"This makes B.1.1.7 a threat that should be taken seriously," said Robert Challen.
14He is a researcher at Exeter University who co-led the research.
15The study was published in the British Medical Journal Wednesday.
16Independent experts said this study's findings add to earlier evidence linking B.1.1.7 with a higher risk of death from COVID-19.
17Lawrence Young is a virologist and professor of molecular oncology at Warwick University.
18He said the reasons for B.1.1.7's higher death rate are still not clear.
19But they "could be related to higher levels of virus replication" and that B.1.1.7 is more infectious.
20Young warned that the British variant was likely the cause for a recent rise in infections across Europe.
21I'm Alice Bryant.
1Researchers say that a highly infectious variant of the new coronavirus is 30 percent to 100 percent more deadly than earlier strong variants. 2The variant was first found in Britain late last year and has since spread around the world. 3The new study compared death rates among people in Britain infected with the new variant to those infected with other versions of the virus. Scientists said that the new variant's death rate was "significantly higher." 4The variant is known as B.1.1.7. 5The B.1.1.7 was first found in Britain in September 2020. It has since been found in more than 100 other countries. It has 23 mutations in its genetic material and some of those changes make it spread more easily. 6Scientists say it is about 40 to 70 percent more infectious than earlier strong variants. 7In the British study, infection with the new variant led to 227 deaths in a group of nearly 55,000 COVID-19 patients. That is in comparison with 141 deaths among the same number of patients infected with other variants. 8The British variant also is able to spread quickly. "This makes B.1.1.7 a threat that should be taken seriously," said Robert Challen. He is a researcher at Exeter University who co-led the research. 9The study was published in the British Medical Journal Wednesday. 10Independent experts said this study's findings add to earlier evidence linking B.1.1.7 with a higher risk of death from COVID-19. 11Lawrence Young is a virologist and professor of molecular oncology at Warwick University. He said the reasons for B.1.1.7's higher death rate are still not clear. But they "could be related to higher levels of virus replication" and that B.1.1.7 is more infectious. 12Young warned that the British variant was likely the cause for a recent rise in infections across Europe. 13I'm Alice Bryant. 14Reuters news agency reported this story. Alice Bryant adapted it for Learning English. Mario Ritter, Jr. was the editor. 15_______________________________________________________________ 16Words in This Story 17variant -n. something that is different in some way from others of the same kind 18significantly -adv. in a way that is large or important enough to be noticed or to have an effect 19mutation -n. a change in the genes of a plant or animal that causes physical qualities that are different than normal 20oncology -n. the study and treatment of cancer 21replication -n. the process of repeating or copying something exactly