Tuesday, June 1, 2010

Define 'source' of infection

The source of infection is defined as "the person, animal, object or substance from which an infectious agent passes or is disseminated to the host"

Define Reservoir for a disease

A reservoir is defined as "any person, animal, arthropod, plant, soil or substance (or combination of these) in which an infectious agent lives and multiplies, on which it depends primarily for survival, and where it reproduces itself in such manner that it can be transmitted to a susceptible host"