Her teams have been inoculating residents for tetanus and Hepatitis A and B. Hepatitis is a danger when people are exposed to sewage, through water or food, Briggs explained. Tetanus can occur when people cut themselves on unclean materials, as may happen when cleaning debris.

　　The rudimentary(根本的) living conditions in many Katrina-struck areas make it more likely that people will get sick and injured, Briggs said.

　　"They have no electricity, no clean water, no air conditioning," she said. "There are collapsed structures and stray animals. There are huge amounts of stray dogs, and people have been bitten."

　　Briggs and other doctors in the area have been treating many cases of diarrhea, rashes, and upper-respiratory illnesses.

　　All of these conditions are to be expected after natural disasters, according to the CDC. But it's too soon to know if these ailments are related to contamination, the CDC's Roebuck said.

　　"We're looking at that question," he said. "We'd like to know the answer."

　　1. The passage gives a description of the contamination in New Orleans after Hurricane Katrina.

　　2. Katrina left New Orleans and other communities tainted with oil and sewage.

　　3. Plaquemines Parish is now covered with even more toxic sediment that it was two weeks ago.

　　4. People are being advised to avoid contact with the sludge by health and environmental agencies.

　　5. The Southern Mutual Help Association and Oxfam America are developing a program to sell every returning resident a protective kit.

　　6. The conditions in New Orleans after Hurricane Katrina is special.

　　7. In addition to the toxic sediment, sprawling blooms of mold have now taken hold in many flooded homes, and it is growing everywhere.

　　8. To date, six people have died from¬________.

　　9. The rudimentary living conditions in many Katrina-struck areas make it more likely that people will get________.

　　10. All of these conditions are to be expected after________.