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Relatedly, when disease is widespread, epidemiological studies investigate what associated factors, such as location, sex, exposure to chemicals, and many others, make a population more or less likely to have an illness, condition, or disease, thus helping determine its etiology. Sometimes determining etiology is an imprecise process.
Medieval European doctors generally held the view that disease was related to the air and adopted a miasmatic approach to disease etiology. [ 7 ] Etiological discovery in medicine has a history in Robert Koch 's demonstration that species of the pathogenic bacteria Mycobacterium tuberculosis causes the disease tuberculosis ; Bacillus anthracis ...
Also called silent disease, silent stage, or asymptomatic disease. This is a stage in some diseases before the symptoms are first noted. [23] Terminal phase If a person will die soon from a disease, regardless of whether that disease typically causes death, then the stage between the earlier disease process and active dying is the terminal phase.
The subclinical (pre-symptomatic) and clinical (symptomatic) evolution of disease is the natural progression of a disease without any medical intervention. It constitutes the course of biological events that occurs during the development of the origin of the diseases [ 4 ] ( etiologies ) to its outcome, whether that be recovery, chronicity, or ...
Despite by definition being based in biological causation and free of objective moral and ethical value, naturalistic theories of disease carry inherent cultural implications. For example, what one culture or country might classify as a disease caused from internal imbalances might be considered normal behavior within a different culture.
An idiopathic disease is any disease with an unknown cause or mechanism of apparent spontaneous origin. [1]For some medical conditions, one or more causes are somewhat understood, but in a certain percentage of people with the condition, the cause may not be readily apparent or characterized.
Many people think it could be a coronavirus—like SARS-CoV-2, the virus that causes illness with Covid-19—or a new strain of influenza, Dr Russo said. “But it could be brand new,” he added.
It is also preferred when etiology is not unique, because the word disease is normally associated to the cause of the clinical problems. On the other hand, by emphasizing the medical nature of the condition, this term is sometimes rejected, such as by proponents of the autism rights movement .