Discordance: 1. The presence of any given condition such as HIV in only one member of a couple. 2. In genetics, the presence of a phenotype such as asthma in only one members of a twin pair. 3. In clinical care, lack of agreement between physician and patient.
In all sense, disconcordance is as opposed to concordance. From dis- + the Latin concordare, to agree = not to agree.
Discordant: 1. Showing discordance, lack of agreement. A couple may be discordant for a sexually transmitted infection, with one partner having it and the other not. 2. In transplantation genetics, between different species. A discordant xenograft is a transplant between members of very different species.
- Discordant couple
Discordant couple: A pair of long-term sexual partners in which one has a sexually transmitted infection and the other does not. The CDC has guidelines for counseling discordant couples in which the woman is HIV-infected and her husband is HIV-uninfected.
Disease: Illness or sickness characterized by specific signs and symptoms.
- Disease nomenclature
Disease nomenclature: A system of classifying and naming diseases. The contemporary categories and codes for diseases are outlined in the World Health Organization’s “International Classification of Diseases.” Within some medical fields, there are standard nomenclatures. For example, DSM-IV, the 4th edition of “Diagnostic and Statistical Manual of Mental Disorders” is a comprehensive classification of officially […]
- Disease surveillance
Disease surveillance: The ongoing systematic collection and analysis of data and the provision of information which leads to action being taken to prevent and control a disease, usually one of an infectious nature.