Omicron more likely to cause fever in children than previous variants, Japan study shows

More children developed symptoms such as fever and convulsions in Japan when the omicron variant of the coronavirus raged early this year than when the delta variant was dominant, a Japanese study showed Friday.

This research is the first large-scale survey in Japan to compare symptoms of COVID-19 patients aged under 18 before after the outbreak of the first omicron variant in Japan, according to the National Center for Child Health and Development.