In this scientific mystery, NOVA ventures to the front lines of medical research where scientists are scrambling to understand the strange new ailment popularly known as "mad cow disease". Highly infectious and incurable, this disease has claimed the lives of nearly a million cattle in Britain, and a variant is responsible for a handful of passings in humans. Millions more people may have been exposed, and now the race is on to determine if we are on the brink of another deadly epidemic like AIDS or Ebola. What scientists are finding is making them rethink many fundamental assumptions about epidemiology and may hold startling implications for public health in the future.
s25e01 - Coma
s25e02 - Faster Than Sound
s25e03 - Bomb Squad
s25e04 - The Proof
s25e05 - Wild Wolves With David Attenborough
s25e06 - Super Bridge
s25e07 - Treasures of the Sunken City
s25e08 - Avalanche!
s25e09 - Danger in the Jet Stream
s25e10 - Night Creatures of the Kalahari
s25e11 - Mysterious Mummies of China
s25e12 - Supersonic Spies
s25e13 - Animal Hospital
s25e14 - The Brain Eater
s25e15 - Everest - The Death Zone
s25e16 - Search for the Lost Cave People
s25e17 - Warnings from the Ice
s25e18 - Crocodiles! With David Attenborough
s25e19 - The Truth About Impotence
Seen in more than 100 countries, NOVA is the most watched science based television series in the world and the most watched documentary series on PBS. It is also one of television's most acclaimed series, having won many major television awards, most of them many times over.