Fourth wave scare! XE variant of Covid-19 in India - all we know about new variant and its symptoms

The XE variant is a recombinant of BA.1 and BA.2, the sub-lineages of SARS-CoV-2, the virus which causes Covid-19. In addition to those, it has three other mutations which were not there in Omicron or BA.1 or BA.2. XE is 10 per cent more infectious than Omicron, says experts.