The virulence of specific strains in humans and other animals is frequently serovar specific. Salmonella enterica serovar Typhi causes typhoid fever in humans, but no disease is associated with experimental infections of mice (8).
Glucose is the primary energy source for the body's cells and the only energy source for the brain and nervous system. A steady supply must be available for use, and a relatively constant level of glucose must be maintained in the blood. A few different protocols may be used to evaluate the glucose level in the blood.lucose is the primary energy source for the body's cells and the only energy source for the brain and nervous system. A steady supply must be available for use, and a relatively constant level of glucose must be maintained in the blood. A few different protocols may be used to evaluate the glucose level in the blood.
Because of this requirement, it is important that the. concentration of glucose in the blood remains nearly constant. The maintenance of a nearly constant. blood glucose level is achieved by a complex set of interactions which include regulation by a number. of hormones of the endocrine system. The hormone insulin is secreted into the blood when a vertebrate eats and the glucose level in the. blood increases. Among the numerous functions of insulin is the stimulation of the uptake, storage, and use of glucose by tissues of the body. These activities result in a decrease in the level of glucose. remaining in the blood.