AUDIO

The first audio clip is an excerpt from a World Health Organization podcast (speaking is Dr. David Heymann, head of the WHO's communicable diseases program). All remaining audio clips are excerpts from a Centers for Disease Control (CDC) training exercise in which ficional media figures provide reports that guide the exercise by informing the exercise participants. These excerpts were clipped and recombined for dramatic effect. All clips are used based on the understanding that these materials are in the public domain.

VIDEO

All videos, with publication rights, were acquired from istockphoto.com.

Cells under microscope by Remy Merriex.

Virus by "budzik."

Birds by William Gregg.

Chickens by "mnn."

Chinese village by Yungshu Chao.

Shanghai by Cracker Clips.

Graphic of globe connected by air routes by "mediaoffline."

Landing plane by Hubert ISSELÉE.

Aerial city view by "korudirect."

Crowd scenes by "GrosSinge."

Ambulance by Alex Torres.

Medics by David Snow.

Police cars by "JStevensJr."

Helicopter landing by Shawn Hussey.

Car fire by Aaron Cantrell.

Static by "kristapsz."