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Atherosclerosis, is the most common process subordinated to cardiovascular morbidity and mortality. The isquemic cardiopatic as consequence of the atherosclerotic process has in Cuba the first place among non violent dysfunctions. The participation of the immune system in the atherosclerosis has studied in the last years. In this paper we proposed to obtain an active experimental model of atherosclerosis induced by immune complex in BALB/CBJ isogenic mice. We employed male mice of six weeks of age under a regimen of water and food at libitum. These animals were divided in two groups, one of them received a scheme of 0-1-4 weeks intraperitoneal via with the cuban anti Hepatitis B vaccine Heberbiovac HB. The other group was the control and was immunized the same way employing the excipient of the vaccine without the Hepatitis B surface antigen (HBsAg). When the scheme finalized we took blood samples of the animals and we quantified the antibodies against the HBsAg (anti-HBs) by means of an immunoenzimatic method. Later we performance seven immunizations by the caudal vein with an interval of five days between them, utilizing as immunogen recombinant HBsAg in the study group with a dose that duplicated the anti-HBs concentration of each animal, in the control group we used saline solution with the same procedure. A week after these immunizations we took blood samples of the animals to determine the circulates immune complex in plasma. During the experiment the animals of the study group inhaled cigarette smoke. The animals were sacrificed by cervical dislocation and the presence of atherosclerotic lesions in the aorta was observed by macroscopic and microscopic manner. In the study group we observed the presence of atheroma plaques but not in the controls in both groups we observed the fatty streaks. The circulates immune complex were detected in none groups. With these results we concluded that we obtained an atherosclerosis model in BALB/CBJ isogenic mice by active way of immune complex formation. [ABSTRACT FROM AUTHOR]