| group A streptococcal necrotizing fasciitis | A complication of infection with GAS (group A streptococci) in which the bacteria attacks and destroys muscle tissue. According to the CDC, 5-10% of people with severe GAS infection develop necrotizing fasciitis. Though the infection can be treated with antibiotics, the fatality rate is close to 30%. This complication often develops as a wound infection after surgery or injury. (05 Mar 2000) |
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| group A streptococci | A common bacteria that is the cause of strep throat, scarlet fever, impetigo, cellulitis-erysipelas, rheumatic fever, acute glomerular nephritis, endocarditis, and group A streptococcal necrotizing fasciitis. The prototype is Streptococcus pyogenes. (05 Mar 2000) |
| group B streptococci | A leading cause of a form of neonatal sepsis that has a 10-20% mortality rate and leaves a large number of survivors with brain damage. Also a leading cause of meningitis. (05 Mar 2000) |
| group dynamics | A term used to represent the study of underlying features of group behaviour, e.g., motives, attitudes; it is concerned with group change rather than with static characteristics. (05 Mar 2000) |
| group homes | Housing for groups of patients, children, or others who need or desire emotional or physical support. They are usually established as planned, single housekeeping units in residential dwellings that provide care and supervision for small groups of residents, who, although unrelated, live together as a family. (12 Dec 1998) |
| group hospital | A private hospital organised and controlled by a group of physicians and restricted to the reception and care of their own patients. (05 Mar 2000) |
| group III mycobacteria | Mycobacteria that are either colourless or that slowly produce a light yellow pigment when grown in the presence of light. Organisms placed in this group belong to the species Mycobacterium intracellulare. Synonym: nonchromogens. (05 Mar 2000) |
| group II mycobacteria | Mycobacteria that produce a yellow pigment even when grown in the dark; when grown in the light, the pigment is orange. These organisms behave as do saprophytes in humans and are nonpathogenic to laboratory animals. Synonym: scotochromogens. (05 Mar 2000) |
| group immunity | <immunology> Resistance of a group to a pathogen due to immunity of a large proportion of the group to that pathogen. (09 Oct 1997) |
| group I mycobacteria | Mycobacteria that produce a bright yellow colour when grown in the presence of light. Organisms placed in this group appear to belong to the species Mycobacterium kansasii. Synonym: photochromogens. (05 Mar 2000) |
| group IV mycobacteria | Mycobacteria that grow rapidly and that do not produce pigment. Organisms placed in this group belong to such species as Mycobacterium ulcerans and M. Marinum. (05 Mar 2000) |
| group practice | Any group of three or more full-time physicians organised in a legally recognised entity for the provision of health care services, sharing space, equipment, personnel and records for both patient care and business management, and who have a predetermined arrangement for the distribution of income. (12 Dec 1998) |
| group practice, dental | Any group of three or more full-time dentists, organised in a legally recognised entity for the provision of dental care, sharing space, equipment, personnel and records for both patient care and business management, and who have a predetermined arrangement for the distribution of income. (12 Dec 1998) |
| group practice, prepaid | An organised group of three or more full-time physicians rendering services for a fixed prepayment. (12 Dec 1998) |
| group processes | The procedures through which a group approaches, attacks, and solves a common problem. (12 Dec 1998) |