New Omicron subvariant may lead to another Covid wave: WHO chief scientist

The threat of Covid pandemic may be waning every day but the WHO on Thursday said that another wave may be on the horizon.Dr Soumya Swaminathan, chief scientist at the World Health Organization (WHO), warned that some countries may see "another wave of infections" triggered by the XBB subvariant of Omicron.The strain has already been reported in several states but the cases are said to be mild.