The Taliban ‘expect a complete handover of power.’ Experts explain who the Taliban are, what life is like under their rule and how the U.S. may bear responsibility
The increasing prevalence of new coronavirus variants is raising questions about how well protected those who’ve already had their Covid-19 shots are against evolving forms of the SARS-CoV-2
SARS-Cov-2 has experienced roughly the same amount of evolutionary change during the pandemic as humans have since Homo habilis first walked the Earth about 2.5m years ago.