December 16, 2025

New Influenza Variant Linked to Rise in Severe Flu Cases   Key Summary: New Influenza Variant (Subclade K) A new influenza A (H3N2) variant, known as subclade K, is linked to rising flu cases and hospitalizations in the U.S., Canada, the U.K., Japan, and Australia Health experts say the variant is now dominant in areas

Flu-Related Deaths of Three Children in Ottawa Signal a Severe Influenza Season in Ontario   Quick Summary: Key Facts at a Glance Three children aged 5–9 have died from influenza-related complications in Ottawa and Eastern Ontario within the first two weeks of December Health officials say the deaths are unusual and may signal a severe