A study of a smallpox vaccine that could prove vital in the United States' war on bioterrorism is under way at Stanford Medical Center. The trial tests the potency of the Dryvax vaccine, a 1970s-era ...

Throughout the course of human history, one infectious disease (Figure 1) may account for more deaths than any other, perhaps all others combined. Smallpox mortality falls between 20% and 50%. Until ...

(Original Caption) Smallpox in an unvaccinated child. Is it finally time to eliminate the remaining stocks of variola (smallpox) virus for good? The World Health Assembly will discuss the current ...

It all started with an unremarkable trip to grandma’s house in 1970. But two days into the visit, something went terribly wrong. The 9-month-old grandson fell ill. First, a fever. Then, a nasty rash.

Health experts see his retreat from international cooperation as disrupting the safe-keepers of one of the world’s deadliest pathogens. By William J. Broad In 1999, William J. Broad and two colleagues ...