BBCNEWS The Travel Show December 4, 2021 05:30:00
Of a teenager accused of murdering four students at his high school. james and jennifer crumbley have also been charged with manslaughter. their son ethan carried out the mass shooting with a semi—automatic pistol bought by his father. the first data on the omicron variant of covid suggests vaccines are less effective at stopping it spreading. scientists in south africa have reported a huge surge in the number of people being re—infected. it's the first real—world evidence indicating the new variant may evade immune defences. and a team of british scientists have used gene editing techno...