Raoultella planticola ( R.?planticola ), considered an environmental organism, is a gram negative, motile, bacillus with phenotypic similarities to the genus Klebsiella. The organism remains a rare cause of human infection with a few cases reported in the literature. However, since its description in 1981 there have been increasing rates of infections caused by R.?planticola with reports of conjunctivitis, liver abscess, cholangitis, pancreatitis, and necrotizing fasciitis. More concerning are reports of carbapenemase-producing isolates which have led to the only 2 mortalities associated with R.?planticola infections. To our knowledge, we report the third case of R.?planticola pneumonia in an immunocompromised patient with no known direct exposure to the reported risk factors.
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