Swine flu precautions in Beijing airport

The video contains a brief acknowledgment and thanks, indicating the end of a segment or presentation.

What is the primary purpose of the initial part of the video?

• To introduce the topic

• To provide a detailed explanation

• To summarize the content

• To ask questions

What does the speaker do in the concluding part of the video?

• Introduces a new topic

• Thanks the audience

• Asks for feedback

• Starts a new discussion