Invisible Killers - Season 1

Influenza delves into the astonishing and little-understood history and impact of this constantly evolving virus, which is often tragically underestimated as merely a cousin to the common cold. Each year, six months in advance of the anticipated flu season, world health officials gather to speculate what strain of virus will be most prevalent and determine which vaccine will be most successful in treating those affected.

Smallpox tells the story of perhaps the greatest accomplishment of medical science, the complete eradication of the worst disease known to humankind, a scourge responsible for an estimated 500 million deaths in the 20th century alone. But experts fear the return of smallpox as a biological weapon.

Ebola examines one of the world's deadliest viruses – spread by physical contact with infected body fluids – as it turns human compassion in to human vulnerability attacking the individuals and health professionals trying to care for the sick. The episode looks back at the perfect storm of the 2014 West African outbreak – where lack of public health infrastructure, cultural practices, and a slow global response produced the deadliest outbreak on record.