Disease - Wikipedia
WebA disease is a particular abnormal condition that adversely affects the structure or function of all or part of an organism and is not immediately due to any external injury. Diseases are often known to be medical conditions that are associated with specific signs and symptoms.
Disease | Definition, Types, & Control | Britannica
WebMar 30, 2024 · disease, any harmful deviation from the normal structural or functional state of an organism, generally associated with certain signs and symptoms and differing in nature from physical injury. A diseased organism commonly exhibits signs or symptoms indicative of its abnormal state.
Medical Diseases & Conditions - Mayo Clinic
WebDiseases & Conditions. Easy-to-understand answers about diseases and conditions. Find diseases & conditions by first letter. A. B. C. D. E. F. G. H. I. J. K. L. M. N. O. P. R. S. T. U. V. W. X. Y. Z. # Symptom Checker. Find out what could be causing your symptoms and when to seek care. Check symptoms. Clinical trials.
Disease Definition & Meaning - Merriam-Webster
WebThe meaning of DISEASE is a condition of the living animal or plant body or of one of its parts that impairs normal functioning and is typically manifested by distinguishing signs and symptoms : sickness, malady. How to use disease in a sentence.
Infectious diseases - Symptoms & causes - Mayo Clinic
WebFeb 18, 2022 · Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. They're normally harmless or even helpful. But under certain conditions, some organisms may cause disease. Some infectious diseases can be passed from person to person.
Human disease | Definition & Facts | Britannica
WebMar 27, 2024 · Human disease, an impairment of the normal state of a human being that interrupts or modifies vital functions. Disease may be trivial if the impairment is minimal. It may also be associated with illness or be latent, becoming apparent at …
Human disease - Classifications, Causes, Symptoms | Britannica
WebThe most widely used classifications of disease are (1) topographic, by bodily region or system, (2) anatomic, by organ or tissue, (3) physiological, by function or effect, (4) pathological, by the nature of the disease process, (5) etiologic (causal), (6) juristic, by speed of advent of death, (7) epidemiological, and (8) statistical. Any ...
Coronavirus disease 2019 (COVID-19) - Symptoms and causes
WebMar 27, 2024 · COVID-19, also called coronavirus disease 2019, is an illness caused by a virus. The virus is called severe acute respiratory syndrome coronavirus 2, or more commonly, SARS-CoV-2. It started spreading at the end of 2019 and became a pandemic disease in 2020.
Infectious Disease: Types, Causes & Treatments - Cleveland Clinic
WebJun 6, 2022 · Overview. What are infectious diseases? Infectious diseases are illnesses caused by harmful organisms (pathogens) that get into your body from the outside. Pathogens that cause infectious diseases are viruses, …
Coronavirus disease (COVID-19) - World Health Organization …
Web3 days ago · Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus. Most people infected with the virus will experience mild to moderate respiratory illness and recover without requiring special treatment. However, some will become seriously ill and require medical attention.
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