"The structure of the DNA complex has been long-awaited." DNA-modifying enzymes bind to specific sequences in the genetic code to aid in the many steps of DNA replication. The smallpox virus is ...

Poxviruses are a family of large, double-stranded DNA viruses, which include variola virus (smallpox), monkeypox ... ribosomes can change in terms of structure and function, either through changes ...

Health experts see his retreat from international cooperation as disrupting the safe-keepers of one of the world’s deadliest ...

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” ...

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 ...

Not so with smallpox. To create this vaccine, you begin with another virus that is similar to the smallpox virus, yet different enough not to bring on the smallpox disease once it enters your body.

All research involving the virus samples requires approval from a special World Health Organization committee of experts. The World Health Assembly, the governing body of WHO, originally scheduled ...