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Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
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Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
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Tuberculosis, or TB, is a bacterial infectious disease caused by Mycobacterium tuberculosis. While its primary impact is on the lungs, leading to pulmonary tuberculosis, it can also affect various other organs, a condition referred to as extrapulmonary tuberculosis.
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Chronic Brucellosis in Japan.

Naoki Kawakami1, Yoko Wakai1, Kazuhito Saito1

  • 1Department of Respiratory Medicine, Tsuchiura Kyodo Hospital, Japan.

Internal Medicine (Tokyo, Japan)
|November 6, 2019
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Summary

Chronic human brucellosis, a rare zoonotic disease, was diagnosed in a Japanese woman after 19 years. Treatment with streptomycin and doxycycline led to symptom relief and negative diagnostic tests.

Keywords:
Brucella canischronic brucellosischronic fatigueintermittent feverundulant fever

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Area of Science:

  • Infectious Diseases
  • Zoonoses
  • Microbiology

Background:

  • Human brucellosis is a globally prevalent zoonotic disease, yet it is uncommon in Japan, with limited documented chronic cases.
  • Brucellosis is caused by Brucella species, which can infect various animals and transmit to humans, often through direct contact or consumption of contaminated products.

Observation:

  • A 39-year-old Japanese woman presented with a 19-year history suggestive of chronic brucellosis.
  • Her prolonged symptoms and fever pattern indicated a persistent infection, later identified as Brucella canis.

Findings:

  • Diagnosis was confirmed using a serum tube agglutination test (SAT).
  • Combination therapy involving streptomycin and doxycycline resulted in significant symptomatic improvement.
  • Post-treatment, the patient exhibited negative SAT results, indicating successful eradication of the infection.

Implications:

  • This case highlights the importance of considering chronic brucellosis in differential diagnoses, even in non-endemic regions.
  • Persistent fatigue and unexplained fever warrant investigation for zoonotic infections like brucellosis.
  • Early and accurate diagnosis, followed by appropriate antimicrobial therapy, is crucial for managing chronic brucellosis and improving patient outcomes.