Omicron variant may have picked up a piece of common-cold virus, researchers say
প্রকাশিত: ০৪ ডিসেম্বর ২০২১, ১১:১৫
The Omicron variant of the virus that causes Covid-19 likely acquired at least one of its mutations by picking up a snippet of genetic material from another virus - possibly one that causes the common...