What is Deltacron?As the portmanteau suggests, Deltacron is a Covid variant that contains elements of Delta and Omicron – in other words, it contains genes from both variants, making it what is known as a recombinant virus.“These recombinants arise when more than one variant infects and replicates in the same person, in the same cells,” says Prof Lawrence Young, a virologist at the University of Warwick. “Deltacron is a product of both the Delta and Omicron variants circulating in the same population.”This week, Gisaid, a global community of scientists that...