1.   For instance, Hall cited studies which showed it was unlikely that contaminated hydraulic fluid could have caused the rudder to jam.

2.   One theory that has not been abandoned and will be discussed this week is that contaminated hydraulic fluid could have caused the rudder to jam.

3.   On the radio Friday morning, he excoriated a hospital for inadvertently pumping contaminated fluid into the bloodstream of six patients, killing three of them.

4.   The safety panel heard separate testimony Wednesday that contaminated hydraulic fluid and wake turbulence created by another aircraft could have contributed to the inadvertent rudder movement.

5.   The measures were taken after four people died of the contagious bacterial disease, which is spread through contaminated fluids, food and vegetables.

6.   The virus is transmitted through contaminated bodily fluids and secretions.