The World Health Organization's influenza monitoring agency said on December 16 that as the northern hemisphere enters winter, the activity of influenza and other respiratory viruses is increasing. Overall, global influenza levels are still within the expected range this season, but since October, the influenza season began early in some countries and quickly reached epidemic levels, while some countries in the southern hemisphere experienced extended influenza season.

The World Health Organization's influenza monitoring agency said on December 16 that as the northern hemisphere enters winter, the activity of influenza and other respiratory viruses is increasing. Overall, global influenza levels are still within the expected range this season, but since October, the influenza season began early in some countries and quickly reached epidemic levels, while some countries in the southern hemisphere experienced extended influenza season.