71.   The discrepancy might indicate that those receiving confidential services were tested in the course of other health care, or were not tested until they showed symptoms.

72.   The people who were ill showed symptoms of the disease and they lived in counties where dead birds infected with the virus have been found.

73.   The study warned, however, that there might be any number of women who contracted HIV through donor sperm but have yet to show any symptoms.

74.   The system, developed by Canadian researchers, has been amazingly accurate in early trials and may be able to diagnose the condition before subjects show any symptoms.

75.   The trouble is, no one knows how long a ferret can carry the rabies virus without showing symptoms.

76.   The vast majority of infected people show no symptoms.

77.   The woman, who asked not to be named, shows no symptoms of anthrax disease, he said.

78.   They have shown mild symptoms, but are in transit to another set of out-of-state relatives and could not be reached immediately.

79.   They been put on antibiotics, but have not shown any symptoms and have not been hospitalized.

80.   Thursday at CBS, federal health and criminal investigators interviewed employees to determine if anyone saw any suspicious letters or were showing any symptoms of infection.