Serratia marcescens Endocarditis.

Infective endocarditis (IE) secondary to and streptococcus species comprises the majority of cases in literature with Gram negative bacterial insults occurring infrequently. is a Gram negative bacillus which is classified as motile, non-lactose fermenting, and a facultative anerobe. The presumed risk factor for the development of IE is intravenous drug use (IVDU). We report two cases of IE causes by : first case describes IE of tricuspid and aortic valve requiring surgical intervention further complicated by epidural abscess. The second case was associated with renal and splenic infarct. These cases highlight the severity and complicated nature of IE. Given IE has been infrequently described in the literature, we believe that our cases are worth reporting to contribute to the present incidence and management of IE.