Abstract
Surveillance programs have been reporting decreasing rates of carbapenem-sensitivity in Serratia marcescens, leading to a concern regarding the few remaining therapeutic options to treat these multidrug-resistant (MDR) organisms. Here, we describe a case series of 11 stem cell hematopoietic transplantation patients infected (N=6) or colonized (N=5) by carbapenem-resistant Smarcescens (CrSm) from 2010 to 2013. The comorbidities found were acute renal insufficiency (3/11), neutropenia (7/11), and mucositis (8/11), and the mortality rate was 64%. KPC was the most prevalent carbapenemase detected (8/11) and tigecycline and gentamicin were the antimicrobials used as treatment.
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