71.   Subsequent research showed that both microbes had caused illness that was attributed to other conditions in the past.

72.   Staying in this state of elevated tension, Gottman believes, can weaken their immune system and cause physiological illnesses.

73.   Such bacteria are more likely to survive in the human stomach, causing illness.

74.   That is not overly surprising, because the microbes responsible for other infectious diseases often invade without causing illness.

75.   The bacterium causing this outbreak is not associated with pollution and had never been found in Galveston Bay in concentrations that would cause illness, authorities said.

76.   The article reported that cider made from the apples the students had gathered caused the illnesses because the apples had not been properly cleaned.

77.   The bacteria found in the Houston salsas was not one of the types that cause intestinal illness.

78.   The company has acknowledged contaminating a creek on its property, a nearby river and groundwater, but rejects contentions that the contamination caused any illnesses.

79.   The cleanest sample contained more than seven times the allowable level of fecal coliform, a bacteria in animal and human manure that can cause illness.

80.   The chemicals have been shown to cause illness in agricultural workers and, on the basis of animal tests, are presumed to hurt children.