Oral typhoid vaccine. Acambis/Berna.
Acambis and Berna are developing HolaVax-Typhoid, a single-dose, live attenuated oral vaccine for the potential prophylaxis of typhoid. A phase II trial was successfully completed in January 1999, and in September 2002, Acambis announced that a bridging trial was planned for the first half of 2003 to confirm that the vaccine produced by Berna was equivalent to the typhoid vaccine that had been studied previously.