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The years of potential life lost (YPLL) is a simple estimate of the number of years that a person's life was shortened due to a disease. For example, if a person dies at the age of 65 from a disease, and would probably have lived until age 80 without that disease, then that disease has caused a loss of 15 years of potential life.
Today, life expectancy in developing countries remains relatively low, as in many Sub-Saharan African nations where it typically doesn't exceed 60 years of age. [ 8 ] The second phase involves improved nutrition as a result of stable food production along with advances in medicine and the development of health care systems .
A representation by Robert Seymour of the cholera epidemic depicts the spread of the disease in the form of poisonous air.. The miasma theory was the predominant theory of disease transmission before the germ theory took hold towards the end of the 19th century; it is no longer accepted as a correct explanation for disease by the scientific community.
[1] [2] With the increasing rise in urban population, disease and epidemic crisis became much more prevalent and was seen as a consequence of urban living. [1] [2] Problems arose as both governments and the medical professionals at the time tried to get a handle on the spread of disease. [1] They had yet to figure out what actually causes ...
Pandemics timeline death tolls. This is a list of the largest known epidemics and pandemics caused by an infectious disease in humans. Widespread non-communicable diseases such as cardiovascular disease and cancer are not included.
Contagious disease, a subset of infectious diseases. Cryptogenic disease, a disease whose cause is currently unknown. Disseminated disease, a disease that is spread throughout the body. Environmental disease; Lifestyle disease, a disease caused largely by lifestyle choices. Localized disease, a disease affecting one body part or area.
A disease caused by infection with an alien entity called "the colour" by characters in the story, the disease affects anything living, including plants, insects, livestock, wild animals, and humans. Symptoms in plants include either stunting or growing abnormally large with much tasteless fruit and growing abnormally-shaped flowers and leaves ...
Before the discovery of an infectious cause, the symptoms of cholera were thought to be caused by an excess of bile in the patient; [12] the disease cholera gets its name from the Greek word χολή, meaning bile. This theory was consistent with humorism, and led to such medical practices as bloodletting. [12]