While probing for evidence of the JC polyomavirus, a common bug, they tested the sample for virus DNA—and instead found the variola virus, which causes smallpox. Known for its signature blisters ...

[1] Smallpox, which occurs only in humans, is classified as either variola minor or variola major. Variola minor has an overall fatality rate of 1% or less, whereas variola major has a fatality ...

There are two forms of smallpox: variola major, which is the more severe form, and variola minor, which is less common and generally less severe. Variola major had a mortality rate of about 30% ...

The campaign to eradicate smallpox ended in 1980 and is one of ... announced that the disease known medically as variola major had been eliminated in its last pockets of infection, India ...

An expert committee that advises the World Health Organization (WHO) has recommended that researchers in the United States and Russia be allowed for the first time to genetically engineer variola ...

Intravenous; WR: Western reserve. Prophylactic immunization using vaccinia virus facilitated the eradication of smallpox. Concerns on the possible use of variola virus as a bioweapon and an ...

Smallpox, one of the biggest killers in history, is caused by a virus called variola. Variola causes a distinctive rash and is often lethal. The name variola comes from the Latin word for “spotted” ...

The Mpox virus is related to the original smallpox virus (Variola major). The EMA's decision to approve Imvanex was based on laboratory data showing that the vaccine offers cross-protection.

the steamboat had been carrying several passengers and crewmen infected with variola major, the lethal virus feared for thousands of years by its better-known name: smallpox. Smallpox had ...

Smallpox, or variola, virus has killed more human beings than any other infectious agent. Fortunately, smallpox virus has only one host-humans -- which made it possible to eradicate it. In 1967, the ...

Australia is no stranger to outbreaks of deadly disease, often with disastrous consequences, especially for Indigenous peoples.