Herbaspirillum Infection in Humans: A Case Report and Review of Literature

Case Reports in Infectious Diseases
Rashmi DhitalAnn K Shin

Abstract

Introduction. Herbaspirillum seropedicae are Gram-negative oxidase-positive nonfermenting rods of Betaproteobacteria class, commonly found in rhizosphere. More recently, some Herbaspirillium species have transitioned from environment to human hosts, mostly as opportunistic (pathogenic) bacteria. We present a 58-year-old female with non-small-cell lung cancer (NSCLC) who presented with pneumonia and was found to have Herbaspirillum seropedicae bacteremia. Case History. A 58-year-old woman with NSCLC on Pralsetinib presented with fevers and rigors for 2 days. Coarse breath sounds were auscultated on the right upper lung field. Labs revealed leukopenia and mild neutropenia. CT chest revealed right upper lobe pneumonia. She was admitted for sepsis secondary to pneumonia and placed on broad spectrum antibiotics with intravenous piperacillin-tazobactam and vancomycin. The patient continued to have fever 2 days after admission (max: 102.8°F). Preliminary blood cultures grew Gram-negative rods. The patient continued to have temperature spikes on the 3rd day of antibiotics (Tmax 101.5°F). Blood cultures revealed oxidase-positive nonfermenting rods. The patient's antibiotic was changed to IV meropenem on the 4th day of hospitalization. U...Continue Reading

References

Jun 6, 2008·Journal of Clinical Microbiology·Theodore SpilkerJohn J Lipuma
Aug 27, 2010·Journal of Clinical Microbiology·Edward D ZigaCarey-Ann D Burnham
Sep 14, 2014·Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America·Roy F ChemalyVictor Mulanovich
Oct 31, 2014·Journal of Clinical Microbiology·Ana C Q MarquesCyntia M T Fadel-Picheth
May 16, 2015·Diagnostic Microbiology and Infectious Disease·Nuntra SuwantaratKaren C Carroll
Jun 16, 2018·Frontiers in Cellular and Infection Microbiology·Peng WuJiarong Zeng
Jan 10, 2019·Annals of Laboratory Medicine·Changseung LiuKyungwon Lee

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