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The natural history of disease is the course a disease takes in individual people from its pathological onset ("inception") until its resolution (either through complete recovery or eventual death). [1] The inception of a disease is not a firmly defined concept. [1] The natural history of a disease is sometimes said to start at the moment of ...
In medicine, a natural history study is a study that follows a group of people over time who have, or are at risk of developing, a specific medical condition or disease. A natural history study collects health information over time to understand how the medical condition or disease develops and to give insight into how it might be treated. A ...
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. An epidemic is the rapid spread of disease to a large number of people in a given population within a short period of time; in meningococcal ...
George Foster explains naturalistic disease theory as following an "equilibrium model" in which health results from ideal balances of well being appropriate to one's age, condition, and environment. Imbalances in these systems result in illness through impersonal and systematic mechanisms. [ 1 ] One example of a naturalistic disease theory is ...
An emerging infectious disease (EID) is an infectious disease whose incidence has increased recently (in the past 20 years), and could increase in the near future. [2][3] The minority that are capable of developing efficient transmission between humans can become major public and global concerns as potential causes of epidemics or pandemics. [4 ...
25,000,000 – 50,000,000 (estimated) The Black Death was a bubonic plague pandemic occurring in Europe from 1346 to 1353. It was one of the most fatal pandemics in human history; as many as 50 million people [2] perished, perhaps 50% of Europe's 14th century population. [3] The disease is caused by the bacterium Yersinia pestis and spread by ...
A primary disease is a disease that is due to a root cause of illness, as opposed to secondary disease, which is a sequela, or complication that is caused by the primary disease. For example, a common cold is a primary disease, where rhinitis is a possible secondary disease, or sequela.
Screening (medicine) A coal miner completes a screening survey for coalworker's pneumoconiosis. Screening, in medicine, is a strategy used to look for as-yet-unrecognised conditions or risk markers. [1][2][3] This testing can be applied to individuals or to a whole population without symptoms or signs of the disease being screened.