In spite of the great advances in medical science, especially regarding the antimicrobial agents, infection remains an important cause of morbidity and mortality. Typhoid fever, which exterminated a major part of the European population in the eighteenth century, continues to be an entity that demands all of our attention so as to avoid its serious complications. The Salmonell sp. have the capacity to infect different organs and parts of the body, including the great vessels, where thy affect the intima layer and produce a condition that is called infectious aneurysm that is associated with a mortality rate around 50%. We report the case of an ulcerated bacterial aneurysm in a 62 year old male with previous symptomatology of Salmonella spp. infection and positive blood cultures for this microorganism. The patient underwent surgical treatment with resection of the aneurisma and a dacron silver coated prosthesis replacement and a patch of greater omentum. Clinical course was satisfactoiry.