Withholding life-prolonging treatments and allowing a terminally ill patient to die naturally is referred to as

Dysthanasia is the opposite of euthanasia. It is often seen in hospital settings where patients are treated to prolong life and the terminally ill patients are allowed to die naturally. It is considered as a “bad death” because a person is kept alive beyond their natural period which results to a prolonged suffering. This usually happens to individuals who can’t let go of their patients. Euthanasia is when family or close relatives decide to remove the life support attached to a suffering patient. 

An epidemic is a large and localized outbreak of a sickness or disease.  a pandemic is a large global outbreak of a sickness or disease.