Scientists develop new Covid strain with 80 pc kill rate in mice_我的网站
A | Washington, Oct 18 (UNI) Scientists at Boston University has developed a new Covid-19 strain which resulted in an 80 per cent kill rate in mice.
The variant, a combination of Omicron and the original virus in Wuhan, killed 80 per cent of the mice infected with it, the university said. When mice were only exposed to Omicron, they experienced mild symptoms, the New York Post said.
A team of scientists from Florida and Boston at the school’s National Emerging Infectious Diseases Laboratories conducted the research.
They extracted the spike protein from Omicron and attached it with the strain first detected at the onset of the pandemic that began in Wuhan, China. They then documented how the mice reacted to the hybrid strain, according to the New York Post report.
“In…mice, while Omicron causes mild, non-fatal infection, the Omicron S-carrying virus inflicts severe disease with a mortality rate of 80 percent,” they wrote in a research paper.
The new strain has five times more infectious virus particles than the Omicron variant, researchers said.
B | 有消息称，在亚特兰大哈茨菲尔德-杰克逊国际机场恢复运营前，阿根廷全队及代表团都只能滞留于此。这次延误将严重压缩阿根廷队在决赛前的训练备战时间。
C | 据悉，亚特兰大飞往纽约的航程通常需要2小时20分钟。如果全队不得不等到次日上午才能起飞，那么在决战西班牙之前，他们在纽约的备战时间将仅剩一天。本届世界杯决赛将于北京时间7月20日（星期一）凌晨3:00在纽约新泽西体育场打响，由阿根廷对阵西班牙。欧洲冠军西班牙队于周二在达拉斯2-0击败法国队晋级决赛，目前他们已经抵达新泽西训练基地展开备战。
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