Yards and yards of clear plastic sheeting line the cellar floor, dwarfing the corpse: headless, frail, supine. The young bony arms — covered in fine black powder from centuries of immobility in the frozen tundra — are crossed at rest, reminiscent of a ceremonial burial. Camera flashes illuminate the scene. Several dozen scientists stand around the body, murmuring in Russian and English about the find of the day. How long do you think it was buried? Do you think it's male or female? How did they get it back to camp? And the pervasive thought: I don't think we should touch it. He could have died of smallpox. Smallpox was a vicious disease before its eradication in the 1970s, but the virus is hardy and can survive long-term storage. One such storage unit is the tundra of the high northern latitudes that preserves an unknown number of bodies that could have died from smallpox. Global warming is now rapidly thawing this freezer, increasing the chance that someone could come into contact with a smallpox-infested body, thereby reintroducing the disease. Smallpox rivals malaria as the most deadly infectious disease ever to affect humans. Throughout history, people looked for ways to combat the disease, priming their immune systems with remedies such as sniffing ground-up scabs or smearing pus into open wounds. The first true vaccine — developed in 1796 by Edward Jenner — was for smallpox. The variola virus responsible for smallpox, which causes fever, fatigue and pustules that leave deep scars on the skin, decimated the Americas after Columbus landed in the West Indies. The disease similarly ravaged the people of the Arctic, and an estimated 300 million people died from smallpox in the 20th century alone before the World Health Organization's vaccination campaign was completely effective.The last case from natural exposure was in the late 1970s in Ethiopia. Today smallpox exists only in highly secure U.S. and Russian laboratories. According to Jonathan Tucker, a senior fellow at the Center for Nonproliferation Studies, "the greatest risk of smallpox infection today is from the continued scientific research with the live virus, as well as from the hypothetical existence of undeclared stocks of the virus that could pose a risk of accidental or deliberate release.
