US scientists are warning that a recently discovered virus found in Russian horseshoe bats is also capable of infecting humans and evading Covid-19 antibodies and vaccines.
The world is still suffering with Covid, which originated in a Chinese bat - but now Khosta-2 could follow it.
The medical term for the new spread is sarbecovirus, which comes from the same sub-category of coronaviruses as SARS-CoV-2.