Episodes
Episode 1
Smallpox
A look at the eradication of the worst disease known to mankind. But even after its disappearance in 1980, does smallpox still present a threat to the human race?
Episode 2
Influenza
Explores the astonishing impact and complex science behind the constantly evolving virus. How does the changing nature of influenza, fuel its ongoing threat to the world?
Episode 3
Ebola
Re-examines the outbreak of one of the world's deadliest viruses on record. How did scientists develop the vaccine that subsided the Ebola infection in 2014?
