81.   Early in the controversy, Dow Corning took steps to show its concern for women fearful their implants caused disease.

82.   Dow Corning Corp., headquartered nearby, made this placid city ground zero in the war over allegations that implants cause disease.

83.   Drop a biological specimen onto a microarray and it will disclose which genes or proteins are active in causing disease.

84.   Earlier assays did contain animal cells, raising the possibility that a co-factor, possibly some cryptic genetic material or a virus, might cause the disease.

85.   Even friendly bacteria can cause disease, Dr. Salyers said.

86.   Even here, many of the viruses or bacteria that cause diseases like whooping cough are still circulating.

87.   Ever since AIDS became a household word, researchers, and the general public, have been grappling with how the virus that causes the disease is transmitted.

88.   Finding a virus is only the first of many steps in the process of determining whether it is harmless or causes disease.

89.   Four of them are Navajo children, leading doctors to believe that Navajos carry a recessive gene that causes the disease, which causes permanent diarrhea.

90.   For instance, drinking the contaminated water could cause gastrointestinal diseases, she said, and getting it on the skin could cause infections.