Cantab Pharmaceuticals, a British biotechnology firm, has a genetically engineered vaccine now in clinical trials to protect against herpes simplex infection and reduce the recurrence of genital herpes.

ECONOMIST: Vaccines

As part of a six-man experiment at the Walter Reed Army Institute of Research in 1987, he had himself injected four times with a genetically engineered malaria vaccine.

FORBES: Booster Shot

And a debate is raging as to whether or not to inoculate the public against smallpox or whether the vaccine would prove effective against genetically engineered strains of the virus.

BBC: Anthrax investigation stalled