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Year : 2022  |  Volume : 14  |  Issue : 3  |  Page : 117-119

Cryptogenic liver abscess caused by a K1 serotype Klebsiella pneumoniae isolate

1 Department of Medicine, Division of Infectious Diseases, Stony Brook University, Stony Brook, New York, USA
2 Department of Medicine, Division of Infectious Diseases, Stony Brook University, Stony Brook; Veteran's Administration Medical Center, Northport, New York, USA

Correspondence Address:
Dr. Bettina C Fries
Department of Medicine, Division of Infectious Diseases, Stony Brook University, Stony Brook, New York 11794
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jgid.jgid_188_21

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Hypervirulent Klebsiella pneumoniae (hvKp) is a common cause of pyogenic liver abscesses in Asia but is quite uncommon in North America. Among the cases described in North America, only occasional reports have described molecular strain typing to confirm the K1 strain as the causative agent. We report a 56-year-old Hispanic female with no previous intra-abdominal pathology and no recent travel, who presented with subacute abdominal pain and developed bacteremia and monomicrobial pyogenic liver abscess due to a community-acquired K1 serotype K. pneumoniae isolate. In this case, the infection was recognized early, so the patient was successfully treated with percutaneous drainage and prolonged antibiotic therapy. Hvkp can cause severe invasive disease with high morbidity and mortality, and the recent emergence of multidrug resistance in these strains poses a serious threat to public health. In addition, the isolation of a K1 K. pneumoniae strain from a cryptogenic liver abscess in a Hispanic patient with no epidemiologic risk factors raises concern for a wider spread of the hypervirulent strain beyond Asian populations. Therefore, a high index of suspicion for hvKp infection in the Hispanic population can be crucial as the hypervirulent strain is likely to cause severe metastatic infection with significant morbidity and mortality.

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2008 Journal of Global Infectious Diseases | Published by Wolters Kluwer - Medknow
Online since 10th December, 2008