Virus - Unsichtbare Killer

Smallpox virus, computer illustration.

Peter Piot, Director of the London School of Hygience and Tropical Health, co­discoverer of the Ebola virus in Zaire in 1976.

Mark Pallen, author of the book on the Birmingham Smallpox occurence: "The Last Days of Smallpox: Vignettes from a Vanquished Virus."

Chickens stand at Yeung UK Road Market where surveillance is done to detect avian influenza.

Landscape of Geneva, Switzerland.

Gloucester cattle, the breed of cow Edward Jenner used to discover the smallpox vaccine.

Statue showing a child receiving a vaccine at the entrance of the World Health Organization in Geneva, Switzerland.

Invisible Killers