The likely effects of a disaster are dead and missing of the overall population or of some more vulnerable population’s group, mental and physical injuries, mental and physical diseases,  secondary hazards (fire, disease etc), contamination of environmental media such as water, air pollution, soil…Displacement of people, damage to infrastructure, breakdown in essential services, loss of property and loss of income are other connected consequences of the major incidents and disasters that influence on the global and public health security

The term "preparedness" covers all aspects, such as: prevention, protection, response and recovery. The term also covers the steps taken to minimise the threat of natural and man-made disasters including deliberate release of chemical, biological and radiological agents.

The capacity to deal with disaster depends on a timely response and global preparedness planning. Therefore, every country should develop a core detection and response capacity, but also maintain a level of cooperation with other countries.

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