The spate of these recent cases is driven by mostly two variants - the EG.5 and its sub-lineage HK.3 - both of which are descendants of the XBB Omicron variant. “Together, they now account for over 75 per cent of our daily cases,” Ong told Channel News Asia here. Singapore Experiencing Another COVID-19 Wave, More People Expected To Fall Sick in Coming Weeks, Says Health Minister Ong Ye Kung.