Fortunately, researchers were able to create a vaccine against this virus. The virus injected is a live virus, but it isn’t the variola virus known to cause smallpox. Instead, the vaccinia virus is ...

Smallpox was a terrible scourge on humanity, killing hundreds of millions of people over the centuries. But its origin remains obscure. Egyptian mummies from 3,000 to 4,000 years ago, including that ...

Smallpox was a severe infectious disease that affected humans for thousands of years before its eradication in the late 20th century. The symptoms included a distinctive rash, pustules, and fever.