By Kim Cox, MPH
HURRICANE KATRINA was a harsh awakening for Americans. In a disaster, help might not arrive for days or not at all.
We have disaster response systems in Contra Costa County, but you and your family's survival may depend on how well you prepare.
Local disasters might include an earthquake, a chemical spill, a disease outbreak or a bioterrorism attack. You must be prepared to stay in your home or to evacuate.
The following list may help you start assembling your family disaster kit.
Three days for each person: Experts agree you should have enough supplies to…