A cluster of variola viruses viewed under an electron microscope. Strains of the variola virus cause smallpox disease. Photo: © Callista Images/Corbis Smallpox was ...

last week came across a startling discovery: vials labeled "variola" — in other words, smallpox. Under international convention, there are supposed to be only two stashes of this deadly virus ...

"So I gently moved his head aside so I could look down the microscope and there were brick-shaped particles that are characteristics of the smallpox virus. "He was horrified, because there was ...

He adds that ancient strains of the smallpox virus ... Because of its size (1.5 microns in length), it can be seen under a microscope, unlike other types of viruses. Sponsor Message (A micron ...

The fact that Vector is one of only two places in the world that stockpiles Smallpox—the other ... The Vector facility has been under the microscope before. Fifteen years ago, a scientist ...

But given that smallpox was eradicated in 1980 and that the only known remaining samples of the disease are kept under lock and key in the U.S. and Russia, the New York Times points out ...

While the race for a Covid-19 vaccine continues, scientists are learning more about the early vaccines used to fight smallpox, the only human infectious disease to be successfully eradicated.

They add that it could also raise fears among allies and adversaries that the United States, under a veil of secrecy, might weaponize the smallpox virus. “I’ve been in that lab,” said Thomas R.