AskDefine | Define diseases

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  1. Plural of disease

Extensive Definition

A disease is an abnormal condition of an organism that impairs bodily functions, associated with specific symptoms and signs.
In human beings,"disease" is often used more broadly to refer to any condition that causes extreme pain, dysfunction, distress, social problems, and/or death to the person afflicted, or similar problems for those in contact with the person. In this broader sense, it sometimes includes injuries, disabilities, disorders, syndromes, infections, isolated symptoms, deviant behaviors, and atypical variations of structure and function, while in other contexts and for other purposes these may be considered distinguishable categories.

Transmission of disease

Some diseases such as influenza are contagious and infectious. Infectious diseases can be transmitted by any of a variety of mechanisms, including inhalation of aerosols produced by coughs and sneezes, by hand to mouth contact with infectious material on surfaces, by bites of insects or other carriers of the disease, and from contaminated water or food (often via faecal contamination), etc. In addition, there are sexually transmitted diseases. In some cases, micro-organisms that are not readily spread from person to person play a role, while other diseases can be prevented or ameliorated with appropriate nutrition or other lifestyle changes. Some diseases such as cancer, heart disease and mental disorders are, in most cases, not considered to be caused by infection, although there are important exceptions. Many diseases (including some cancers, heart disease and mental disorders) have a partially or completely genetic basis (see Genetic disorder) and may thus be transmitted from one generation to another.

Social significance of disease

Living with disease can be very difficult. The identification of a condition as a disease, rather than as simply a variation of human structure or function, can have significant social or economic implications. The controversial recognitions as diseases of post-traumatic stress disorder, also known as "Soldier's heart," "shell shock," and "combat fatigue;" repetitive motion injury or repetitive stress injury (RSI); and Gulf War syndrome has had a number of positive and negative effects on the financial and other responsibilities of governments, corporations and institutions towards individuals, as well as on the individuals themselves. The social implication of viewing aging as a disease could be profound, though this classification is not yet widespread.
A condition may be considered to be a disease in some cultures or eras but not in others. Oppositional-defiant disorder, attention-deficit hyperactivity disorder, and, increasingly, obesity, are conditions considered to be diseases in the United States and Canada today, but were not so-considered decades ago and are not so-considered in some other countries. Lepers were a group of afflicted individuals who were historically shunned and the term "leper" still evokes social stigma. Fear of disease can still be a widespread social phenomena, though not all diseases evoke extreme social stigma.
Sickness confers the social legitimization of certain benefits, such as illness benefits, work avoidance, and being looked after by others. In return, there is an obligation on the sick person to seek treatment and work to become well once more. As a comparison, consider pregnancy, which is not a state interpreted as disease or sickness by the individual. On the other hand, it is considered by the medical community as a condition requiring medical care and by society at large as a condition requiring one's staying at home from work.

Global burden of disease

This chart, compiled in 2002 from the global burden of disease study performed by the World Health Organization shows an overview of the impact of various classifications of disease, segregated by regions with low and high mortality:


External links

diseases in Arabic: مرض
diseases in Aragonese: Malautía
diseases in Asturian: Enfermedá
diseases in Guarani: Mba'asy
diseases in Aymara: Usu
diseases in Min Nan: Pīⁿ
diseases in Banyumasan: Penyakit
diseases in Breton: Kleñved
diseases in Bulgarian: Болест
diseases in Catalan: Malaltia
diseases in Czech: Nemoc
diseases in Welsh: Clefyd
diseases in Danish: Sygdom
diseases in German: Krankheit
diseases in Estonian: Haigus
diseases in Spanish: Enfermedad
diseases in Esperanto: Malsano
diseases in Basque: Gaixotasun
diseases in Persian: بیماری
diseases in French: Maladie
diseases in Western Frisian: Sykte
diseases in Irish: Galair
diseases in Galician: Doenza
diseases in Hindi: रोग
diseases in Croatian: Bolest
diseases in Ido: Morbo
diseases in Indonesian: Penyakit
diseases in Interlingua (International Auxiliary Language Association): Maladia
diseases in Icelandic: Sjúkdómur
diseases in Italian: Malattia
diseases in Hebrew: מחלה
diseases in Kazakh: Ауру
diseases in Kurdish: Nesaxî
diseases in Latin: Morbus
diseases in Latvian: Slimība
diseases in Lithuanian: Liga
diseases in Lingala: Bokɔnɔ
diseases in Hungarian: Betegség
diseases in Macedonian: Болест
diseases in Malagasy: Marary
diseases in Malayalam: രോഗം
diseases in Malay (macrolanguage): Penyakit
diseases in Dutch: Ziekte
diseases in Japanese: 病気
diseases in Norwegian: Sykdom
diseases in Norwegian Nynorsk: Sjukdom
diseases in Occitan (post 1500): Malautiá
diseases in Pushto: ناروغي
diseases in Polish: Choroba
diseases in Portuguese: Doença
diseases in Romanian: Boală
diseases in Quechua: Unquy
diseases in Russian: Болезнь
diseases in Albanian: Sëmundja
diseases in Sicilian: Affizzioni
diseases in Simple English: Disease
diseases in Slovak: Choroba
diseases in Slovenian: Bolezen
diseases in Serbian: Болест
diseases in Finnish: Sairaus
diseases in Swedish: Sjukdom
diseases in Tagalog: Karamdaman
diseases in Tamil: நோய்
diseases in Telugu: వ్యాధి
diseases in Thai: โรค
diseases in Turkish: Hastalık
diseases in Ukrainian: Хвороба
diseases in Urdu: مرض
diseases in Yiddish: קראנקייט
diseases in Chinese: 疾病
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