CLEAN : WHO chief praises Brazils reaction to Zika

The video discusses the challenges a country faces and emphasizes the importance of addressing these challenges with speed, scale, comprehensiveness, and courage. It highlights the need for strategic approaches to effectively tackle difficult issues.

What are the key aspects mentioned in the text regarding speed and scale?

How does the text describe the courage needed to deal with challenges?

What does the text imply about comprehensiveness in relation to challenges?

In your opinion, why is it important to address difficult challenges?

Can you provide an example of a difficult challenge that requires courage?