Two cases of Prevotella oris causing serious pleuropulmonary infections

Vecilla, Domingo Fernández; Matheus, Mary Paz Roche; Hidalgo, Gotzon Iglesias; Zárraga, Estíbaliz Ugalde; Barañano, Miren Josebe Unzaga; Arco, José Luis Díaz de Tuesta del

doi:10.37201/req/001.2023

Cited by 2 publications

(1 citation statement)

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“…A few articles have reported that P. oris can cause pleural effusion and pleuropulmonary infections. 24,26 In addition, animal studies have suggested that coinfection of mice with P. intermedia and S. constellatus results in more severe pneumonia and higher mortality than infection with each pathogen separately, and may lead to lung abscesses and empyema. 27 Therefore, we believe that P. oris may also play a role as a co-source of infection.…”

Section: Discussionmentioning

confidence: 99%

Severe pneumonia with empyema caused by Parvimonas micra and Streptococcus constellatus co-infection: a case report

Duan,

Feng,

Shen

et al. 2023

J Int Med Res

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Empyema is a common complication of pneumonia, caused by the accumulation of purulent exudate due to pathogenic bacteria invading the pleural cavity. Parvimonas micra and Streptococcus constellatus are pathogens that rarely cause pneumonia with empyema. Herein, a case of severe empyema caused by these two pathogens, confirmed by metagenomic next-generation sequencing (mNGS) of pleural effusion cultures, is reported. A male Chinese patient in his late sixties presented with wheezing, cough, sputum expectoration, and fever. Blood and sputum cultures were negative for pathogens, but the pleural effusion culture was positive for S. constellatus, and was also found to contain P. micra, confirmed by mNGS. The patient’s symptoms improved after treatment with cefoperazone/sulbactam and moxifloxacin. Pneumonia caused by P. micra and S. constellatus is rare; however, coinfection with these pathogens may cause severe pneumonia, with or without empyema.

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Section: Discussionmentioning

confidence: 99%