Due to different definitions used in disaster-related literature, for the purpose of this Toolkit the main terms used are defined below. The full Glossary can also be downloaded in a .pdf format (see User Guide Section).
Hazards are dangerous phenomena, substances, human activities or conditions that may cause loss of life, injury or other health impacts, property damage, loss of livelihoods and services, social and economic disruption, or environmental damage.  The hazards are classified into three major types: natural hazards, man-made non-intentional hazards, and man-made intentional and complex hazards/disasters.
Healthcare is the act of taking preventative or necessary medical procedures to improve a person's well-being. This may be done with surgery, the administering of medicine, or other alterations in a person's lifestyle. These services are typically offered through a health care system made up of hospitals and physicians. For this toolkit we will refer to healthcare as the network of hospital and afferent medical and administrative staff.