51.   One of the challenges of employing naturally occurring enzymes and other organic molecules to fight disease is that the immune system often regards them as invaders and attacks them.

52.   Only two other diseases are fought with vaccines derived from different viruses.

53.   Others are fighting diseases like arthritis, diabetes and cancer or coping with high blood pressure.

54.   Parseghian now devotes his time doing fundrasing to fight diseases that claimed the life of one of his grandchildren and threatens another.

55.   PathoGenesis has expertise in bacterial analysis that could help Chiron develop drugs to fight infectious diseases.

56.   Over the years, the CDC expanded into a dozen centers, but one of its main priorities remained fighting infectious diseases.

57.   Physical pain can almost always be controlled after doctors have given up on fighting the disease, pain specialist Smith said.

58.   Politicians, reacting as they always do to public sentiment, were freeing up tons of money to fight the disease.

59.   Plasma is the liquid part of blood that contains antibodies that fight disease and can be used as a building block for drugs.

60.   Private laboratories are already creating embryos for the purpose of harvesting their cells to fight disease.