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Smallpox Inspections

Photo: Two men examining a Native American boy
A young Native American boy in Yukon Territory is checked for smallpox and vaccinated against the disease in this circa-1900 photograph. Smallpox killed some 300 million people worldwide in the 20th century before it was eradicated in 1977. Today the biggest threat from smallpox comes from its possible use as a bioterrorism agent.
Photograph by W. A. Rogers

Health and Human Body Topics

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Adventure Videos

Check out adventure videos from our West Coast Adventure Editor Steve Casimiro and go "Behind the Lens."

The Green Guide

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Help conserve the world's natural resources.