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Acute Pneumonia Caused by Clinically Isolated Legionella pneumophila Sg 1, ST 62: Host Responses and Pathologies in Mice.


ABSTRACT: Legionnaires' disease is a severe form of lung infection caused by bacteria belonging to the genus Legionella. The disease severity depends on both host immunity and L. pneumophila virulence. The objective of this study was to describe the pathological spectrum of acute pneumonia caused by a virulent clinical isolate of L. pneumophila serogroup 1, sequence type 62. In A/JOlaHsd mice, we compared two infectious doses, namely, 104 and 106 CFU, and their impact on the mouse status, bacterial clearance, lung pathology, and blood count parameters was studied. Acute pneumonia resembling Legionnaires' disease has been described in detail.

SUBMITTER: Trousil J 

PROVIDER: S-EPMC8781576 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature

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Acute Pneumonia Caused by Clinically Isolated <i>Legionella pneumophila</i> Sg 1, ST 62: Host Responses and Pathologies in Mice.

Trousil Jiří J   Frgelecová Lucia L   Kubíčková Pavla P   Řeháková Kristína K   Drašar Vladimír V   Matějková Jana J   Štěpánek Petr P   Pavliš Oto O  

Microorganisms 20220114 1


Legionnaires' disease is a severe form of lung infection caused by bacteria belonging to the genus <i>Legionella</i>. The disease severity depends on both host immunity and <i>L. pneumophila</i> virulence. The objective of this study was to describe the pathological spectrum of acute pneumonia caused by a virulent clinical isolate of <i>L. pneumophila</i> serogroup 1, sequence type 62. In A/JOlaHsd mice, we compared two infectious doses, namely, 10<sup>4</sup> and 10<sup>6</sup> CFU, and their i  ...[more]

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