Subscribe on YouTube: New York Times reporter, Sheri Fink recounts her discovery that Sierra Leone’s outbreak started much earlier than .

Subscribe on YouTube: The vivid, inside story of how the ebola virus spread and the global failure to stop it. The vivid, inside story of how .

FRONTLINE investigates the spread of dangerous pathogens in our meat — particularly poultry — and why the food-safety system isn’t stopping the threat.

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