The damage of Hurricane Katrina is not left to homes and buildings but in greater toll to human and animal life across the region. The city of New Orleans has become a petri-dish of bacteria and disease that is rapidly spreading throughout the flood ravaged area.

CDC tests of the water that has flooded the streets of New Orleans are showing traces of everything imaginable.

Ivor van Heerden, an expert studying the public health impact of hurricanes says, "Go home and identify all the chemicals in your house. It's a very long list. And that's just in a home. Imagine what's in an industrial plant or a sewage plant."

The number of hazards in the water come from dead humans, dead animals, animal waste, gasoline, diesel, anti-freeze, bleach, chemicals, human waste, acids, alcohols and many number other substances.

Clearing the water from New Orleans and the surrounding region could take up to 90-days.

Word from city officials and the Army Corps of Engineers is that at least 90% of the buildings and homes in the city of New Orleans will have to be destroyed, including the Super Dome.