81.   The disease usually is spread through infected fleas, and Keyes noted that the pups are thoroughly powdered with insecticide before they leave the field.

82.   The exhibition is organized to represent both the passage of time and the chains of causal links that spread disease.

83.   The faster the special unit reacts, the less chance the infected person will spread the disease.

84.   The disease is spread by sharing fluid from the mouth or nose, such as by kissing or sneezing on someone.

85.   The disease is spread from animals when people touch infected feces and then touch their mouths.

86.   The disease is spread when healthy birds come into contact with an infected bird or an object contaminated by a diseased bird.

87.   The highly contagious, respiratory disease is spread by rats or fleas from infected rats.

88.   The hardy fish also can compete unfairly with and spread diseases to wild fish when they escape from farms.

89.   The inspectors feared that mud on the vehicles and their tires might spread the disease, which has not yet been detected in Canada.