Disaster
A disaster is a serious disruption, occurring over a relatively short time, of the functioning of a community or a society involving widespread human, material, economic or environmental loss and impacts, which exceeds the ability of the affected community or society to cope using its own resources.
Emergency
An emergency is a situation that poses an immediate risk to health, life, property, or environment. Most emergencies require urgent intervention to prevent a worsening of the situation, although in some situations, mitigation may not be possible and agencies may only be able to offer palliative care for the aftermath.
Medicine
Medicine is the science and practice of the diagnosis, treatment, and prevention of disease. Medicine encompasses a variety of health care practices evolved to maintain and restore health by the prevention and treatment of illness. Contemporary medicine applies biomedical sciences, biomedical research, genetics, and medical technology to diagnose, treat, and prevent injury and disease, typically through pharmaceuticals or surgery, but also through therapies as diverse as psychotherapy, external splints and traction, medical devices, biologics, and ionizing radiation, amongst others.
Medicine
'Tis time to give 'em physic, their diseases
Are grown so catching.
William Shakespeare, Henry VIII (c. 1613), Act I, scene 3, line 36.
Medicine
You behold in me
Only a travelling Physician;
One of the few who have a mission
To cure incurable diseases,
Or those that are called so.
Henry Wadsworth Longfellow, Christus, The Golden Legend (1872), Part I.
Disaster
The formula for achieving a successful relationship: You should treat all disasters as if they were trivialities but never treat a triviality as if it were a disaster.
Quentin Crisp, Manners from Heaven: A Divine Guide to Good Behaviour (1984), chapter 7.