See body b..
- clinical b. a b. that differs from genetic b. mainly in the added component of morbidity; a trait that is neither a clinical or a genetic lethal may be grossly disabling.
- genetic b. the genetic debt due to harmful mutation but as yet undischarged. (In a large population of fixed size every mutation with diminished genetic fitness will eventually become extinct and depending on the details of inheritance and phenotype must be paid for by a fixed number of genetic deaths per mutation, the genetic debt.)
- global b. of disease mathematical measure of loss of healthy life years due to disabling diseases in a country's population. SEE ALSO: disability-adjusted life years, under year.
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Medical dictionary. 2011.