Even five years after the 9/11 attacks, the U.S. public health system remains unprepared to tackle terrorist attacks.

The annual study by Trust for America's Health, released Tuesday, found that the first line of defense against pandemic flu or bio-terror attack remains inadequate five years after the 9/11 and anthrax attacks of 2001

Worried about the ever possible threat of a bioterrorism attack, researchers are working to find more readily accessible and effective vaccinations for smallpox. Manipulating human antibodies with Chimpanzee blood may prove to be an effective treatment.

A vaccine made by splicing chimp and human antibodies is said to be both safer and more effective than the current smallpox vaccine, according to researchers in a Reuters report

A new study suggests that some people infected by the monkeypox outbreak in 2003 were protected by previous smallpox vaccinations. This finding could prove beneficial in the event of a bioterrorism attack, researchers say.

The monkeypox outbreak made 72 people ill in several Midwestern states, but did not cause any fatalities

Two teams of U.S. scientists may have made headway in defending livestock and communities at large against the Nipah virus.

The virus is a member of a new genus of viruses related to the mysterious Hendra virus, which infected horses and killed two people in Australia in 1994