The big one is coming, and it will be a flu pandemic
By Dr. Sanjay Gupta, Chief Medical Correspondent
Experts say we're "due" for a pandemic that will have a greater impact on humanity than anything else happening in the world.
Parents who lost child to flu seek answers
In CNN Films' "Unseen Enemy," some of the world's top experts explore lurking viruses and bacteria that may create the next global pandemic.
Teen's death awakes town to dangers of flu
In CNN Films' "Unseen Enemy," some of the world's top experts explore lurking viruses and bacteria that may create the next global pandemic.
Ebola survivor now helps fight it
In CNN Films' "Unseen Enemy," some of the world's top experts explore lurking viruses and bacteria that may create the next global pandemic.
Inside an Ebola hospital
In CNN Films' "Unseen Enemy," some of the world's top experts explore lurking viruses and bacteria that may create the next global pandemic.
Our daughter died from the flu
In CNN Films' "Unseen Enemy," some of the world's top experts explore lurking viruses and bacteria that may create the next global pandemic.
Where do new infections come from?
In CNN Films' "Unseen Enemy," some of the world's top experts explore lurking viruses and bacteria that may create the next global pandemic.
What it's like to be a doctor during an outbreak
In CNN Films' "Unseen Enemy," some of the world's top experts explore lurking viruses and bacteria that may create the next global pandemic.
The origin of the Ebola virus
CNN's Isa Soares speaks with professor David Heymann, one of the people who first discovered the Ebola virus.
Ebola patient describes what it's like
American Ebola survivor Nancy Writebol talks about overcoming the deadly disease and why she and her husband decided to go back to Liberia.