Covid variants could be named after star constellations if Greek alphabet is used up, says WHO epidemiologist

New coronavirus variants could be named after star constellations when the 24 letters in the Greek alphabet are used up, the Covid-19 technical lead for the World Health Organisation (WHO) has said. Maria Van Kerkhove revealed the body was considering how the naming rule for mutations of interest and concern should change amid concerns new variants will continue to emerge in the coming months.