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In pathology, pathogenesis is the process by which a disease or disorder develops. It can include factors which contribute not only to the onset of the disease or disorder, but also to its progression and maintenance. [1] The word comes from Ancient Greek πάθος (pathos) ' suffering, disease ' and γένεσις (genesis) ' creation '.
Nutrition and growth during the early years of life can be related to the growth of diseases in humans later in their lives. For example, a study done in Jamaica showed that the blood pressure of children was associated with the mother's hemoglobin levels and body fat during pregnancy. [ 21 ]
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.
Pathology is the medical discipline that describes conditions typically observed during a disease state, whereas physiology is the biological discipline that describes processes or mechanisms operating within an organism. Pathology describes the abnormal or undesired condition (symptoms of a disease), whereas pathophysiology seeks to explain ...
Focal infection theory is the historical concept that many chronic diseases, including systemic and common ones, are caused by focal infections. In present medical consensus, a focal infection is a localized infection, often asymptomatic, that causes disease elsewhere in the host, but focal infections are fairly infrequent and limited to fairly uncommon diseases. [1]
An infectious disease, also known as a transmissible disease or communicable disease, is an illness resulting from an infection. Infections can be caused by a wide range of pathogens, most prominently bacteria and viruses. [2] Hosts can fight infections using their immune systems.
Experts working in the Tomb of Cerberus in Giugliano, an area in Naples, unsealed a 2,000-year-old sarcophagus. Inside they found the remains of a shockingly well-preserved body lying face-up and ...
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 ...