in Emergency Situations (PAHO, 1999)
can be caused by man-made situations - accidents or war - or natural
phenomena - earthquakes, drought or floods. Most of these disasters
result in loss of life and property and mass evacuation of people.
After disasters, the most important commodity for the affected population
is water, and shortages or pollution of this resource can have very
serious consequences for public health.
authorities have a critical role in preparing for and reducing the
impact of these events, in order to prevent dramatic outbreaks of