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see septicemiasepticemia
, invasion of the bloodstream by virulent bacteria that multiply and discharge their toxic products. The disorder, which is serious and sometimes fatal, is commonly known as blood poisoning.
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the presence of bacteria in the blood. Bacteria enter the blood of man and animals through injuries of the skin and mucous membranes, and also when there are pathological changes in the lymph nodes, vascular system, and so on. Bacteremia accompanies many infectious diseases, such as leptospirosis, typhus, relapsing fever, and tularemia; it is especially characteristic of intestinal infections—typhoid, paratyphoid, and other salmonelloses; brucellosis, and others—in which it causes generalization of the pathologic process. Bacteremia is most intensely expressed during the acute (generalized) period of a disease. Bacteremia develops under the action of medium and large doses of ionizing radiation as a result of disruption of natural immunity. There is a decrease in the production of antibodies, a decrease in the number of leukocytes and of their phagocytic activity, and also changes in the permeability of tissue barriers and a number of other factors. Bacteremia is a characteristic complication of radiation sickness. As the organism overwhelms the disease (activation of the phagocytic function of the leukocytes, accumulation of antibodies, and so on), bacteremia decreases to the point of complete disappearance.


Presence of bacteria in the blood.
References in periodicals archive ?
We have reported two new cases of Moraxella catarrhalis bacteremic pneumonia.
Predictors of viridans streptococcal shock syndrome in bacteremic children with cancer and stem-cell transplant recipients," Journal of Clinical Oncology, vol.
Nonpigmented Chromobacterium violaceum bacteremic cellulitis after a fish bite.
Major finding: None of 59 bacteremic patients with a documented penicillin allergy had an allergic reaction to empiric beta-lactim treatment.
The present study investigated the prevalence of bacteremia in a Brazilian population with gingivitis, and assessed the germ-killing efficacy of an EOM by determining the levels of oral microorganisms in the bloodstream resulting from an induced bacteremic event.
Although this finding is seemingly inconsistent with the pathogenic nature of the bacterial invasion of vessels, it is not uncommon; according to other case reports in the literature, only about 50% of these patients are bacteremic.
The presentation of a bacteremic urinary tract infection after a transrectal biopsy of the prostate suggests possible contamination from the procedure.
Invasive pneumococcal disease includes bloodstream infections, meningitis (inflammation of the coverings of the brain and spinal cord), bacteremic pneumonia, and empyema (accumulation of pus in the cavity surrounding the lungs).
1,7) Short-duration therapy for patients with bacteremic S aureus CAP infection has been associated with an increased risk of endocarditis, and the presence of pulmonary cavities may warrant prolonged therapy.