51.   Nabi is developing a vaccine against staph vaccines.

52.   Nevertheless, Fauci said preliminary research indicated that a safe and effective HIV vaccine could be developed.

53.   New data reported here suggest that the ability of the AIDS virus to mutate and recombine in infected people raises serious questions about whether a vaccine can be developed.

54.   No rabies vaccine has been developed for pigs, Baker said, but she added that the fatal viral disease has not been a problem.

55.   Once one even partially successful vaccine is developed, a far greater number of companies are likely to concentrate on the search.

56.   One victim was a worker in a laboratory where polio vaccine was being developed, he said.

57.   One difficulty in developing a vaccine to fight bacterial infections is in the way a vaccine works.

58.   Other companies developing AIDS vaccines include British Biotech Plc and Immune Response Corp.

59.   Peters noted that all of the advances in developing anthrax vaccines had occurred because scientists had had access to the cultures.

60.   Over the next five years, the money will fund four separate projects, all related to developing a vaccine for Chagas disease.