Severe Legionella Pneumonia in Which Serial Testing by Ribotest® Legionella was Useful for the Diagnosis

A 79-year-old man presented with chest pain, and urinary antigen tests for Legionella pneumophila (ImmunoCatch® Legionella and Ribotest® Legionella) were negative on admission. The next day, rapid respiratory failure suggested Legionella pneumonia, and levofloxacin was added. Since a lung infiltrati...

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Bibliographic Details
Published inInternal Medicine Vol. 62; no. 20; pp. 2989 - 2993
Main Authors Motokura, Yumi, Ito, Akihiro, Ishida, Tadashi
Format Journal Article
LanguageEnglish
Published Tokyo The Japanese Society of Internal Medicine 15.10.2023
Japan Science and Technology Agency
Subjects
Case Report
diagnosis
Infectious diseases
Internal medicine
Legionella
Legionella pneumonia
Legionella pneumophila
Levofloxacin
Pneumonia
urinary antigen test
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Summary:A 79-year-old man presented with chest pain, and urinary antigen tests for Legionella pneumophila (ImmunoCatch® Legionella and Ribotest® Legionella) were negative on admission. The next day, rapid respiratory failure suggested Legionella pneumonia, and levofloxacin was added. Since a lung infiltration shadow appeared on the other side as well on day 4, non-infectious diseases were considered, and steroid therapy was started. Urinary antigen tests for Legionella pneumophila became positive on day 5. In the present case, retesting with Ribotest® Legionella, which could be negative early after the disease onset, was useful for diagnosing Legionella pneumonia, which led to the discontinuation of unnecessary steroid treatment.
Bibliography:ObjectType-Case Study-2
SourceType-Scholarly Journals-1
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Correspondence to Yumi Motokura, yumi.m16120@gmail.com
ISSN:0918-2918
1349-7235
DOI:10.2169/internalmedicine.0766-22