CLEAN: WHO raises flu alert, demands pandemic plans activated

The video discusses the transition from phase four to phase five in the context of the US government, paying tribute to efforts in handling pandemics. It emphasizes the seriousness of influenza pandemics due to their rapid global spread. The video also outlines the importance of preparation strategies for a potential full-fledged pandemic.

What is the potential impact of an influenza pandemic mentioned in the text?

What does the speaker imply about the spread of influenza pandemics?