Publications by authors named "Kumiko Negishi"

Article Synopsis
  • Streptococcus suis is a gram-positive bacterium that can cause serious infections like bacterial meningitis and sepsis in humans, often transmitted through raw pork or exposure to pigs.
  • A case study highlights a 38-year-old woman who developed septic shock after consuming raw pork, and although medical interventions were aggressive, her condition worsened rapidly.
  • The report emphasizes the importance of timely recognition of such zoonotic pathogens and suggests that peripheral blood smears can help diagnose infections even before blood culture results are available.
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Gemella is a facultative anaerobic Gram-positive coccus and a rare cause of infective endocarditis (IE). Gram staining may eventually misidentify the organism, which tends to easily decolorize and manifest as either Gram-negative or Gram-variable. Commercial biochemical tests are often used to identify Gemella, but the methods they employ sometimes lack accuracy.

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Background: The prevalence of invasive fungal infection is increasing. An effective diagnostic test is required to identify and treat them successfully.

Methods: All autopsy records at our hospital for the period from January 2000 through December 2005 [corrected] were reviewed for cases of invasive fungal infection.

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Article Synopsis
  • A rare case of recurrent pulmonary nocardiosis (PN) is reported in a patient who received a hematopoietic stem cell transplant and was being treated for bronchiolitis obliterans linked to chronic graft-versus-host disease (cGVHD).
  • The patient initially responded well to meropenem therapy, but PN recurred three times despite attempts to manage it with different oral antibiotics based on susceptibility testing.
  • Frequent recurrences were likely due to low antibiotic blood levels and poor gastrointestinal absorption related to the ongoing effects of cGVHD.
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We report the successful treatment of a disseminated Fusarium infection with skin manifestations in a severely neutropenic patient. A 51-year-old man with acute myeloblastic leukemia (M4) underwent two courses of remission induction therapy with cytarabine and daunorubicin. Despite prophylactic treatment with tosufloxacin and micafungin, the patient developed a febrile scrotal ulcer.

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To assess the merit of serum HIV-1 RNA quantification in detecting acute HIV infection, we reviewed the results of HIV-1 RNA assay and antibody tests in all patients who received those tests at our hospital from August 1999 to December 2004. Of 3530 such patients, five were sero-negative and PCR-positive with more than 105 copies/ml at initial examination. Four of them had HAART and followed a favorable course; they were later confirmed to be sero-positive by Western blotting.

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