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Meyer S, Tilloy V, Durand-Fontanier S, Lafon T, Garnier F, Martin C, Ploy MC, Barraud O. Emayella augustorita, New Member of Pasteurellaceae, Isolated from Blood Cultures of Septic Patient. Emerg Infect Dis 2024; 30:1719-1721. [PMID: 38907366 PMCID: PMC11286039 DOI: 10.3201/eid3008.231651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/24/2024] Open
Abstract
We report discovery of a new bacterial genus and species of the family Pasteurellaceae by using phylogenetic and metabolic analysis. The bacterium, Emayella augustorita, was isolated from blood cultures of a patient in France diagnosed with an adenocarcinoma of the intestines and who was treated with a biliary prosthesis placement.
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Caméléna F, Merimèche M, Liberge M, Maubaret C, Donay JL, Taha MK, Fouéré S, Berçot B. Detection of CTX-M-15 ESBL in XDR Haemophilus parainfluenzae from a urethral swab. J Antimicrob Chemother 2024; 79:539-545. [PMID: 38197448 DOI: 10.1093/jac/dkad408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 12/07/2023] [Indexed: 01/11/2024] Open
Abstract
OBJECTIVES Haemophilus parainfluenzae is an opportunistic pathogen causing respiratory tract infection and sexually transmitted diseases. The emergence of multidrug resistance in this species is particularly worrisome, especially since the recent description of CTX-M-15 ESBL-producing isolates in Spain. The aim of this study was to characterize a CTX-M-15-producing H. parainfluenzae clinical isolate, HP01, obtained from a urethral swab. METHODS MICs were determined with gradient strips for this isolate. Hydrolysis assays were performed with the β LACTA test. Genomic DNA from HP01 was subjected to Illumina and Oxford Nanopore sequencing to investigate the genetic environment of blaCTX-M-15. Phylogenetic analysis was performed with available H. parainfluenzae genomes from the NCBI database, including CTX-M-15 producers. RESULTS HP01, an XDR isolate, was resistant to penicillin, third-generation cephalosporins, fluoroquinolones, macrolides, cyclines and co-trimoxazole and susceptible only to carbapenems and rifampicin. HP01 carried blaTEM-1, blaCTX-M-15, tet(M), catS and mef(E)/mel and harboured amino acid substitutions in PBP3, PBP5, GyrA, ParC and FolA implicated in resistance. Genomic analysis revealed that blaCTX-M-15 was carried by a Tn3-like transposon inserted into a novel integrative and conjugative element (ICE), ICEHpaSLS, present on the chromosome and belonging to the ICEHin1056 family described in Haemophilus influenzae. The tet(M)-MEGA element was also detected on the chromosome. No plasmid was found. The phylogenetic analysis showed that four H. parainfluenzae producing CTX-M-15 clustered in the same clade. CONCLUSIONS Here we report the description of an XDR H. parainfluenzae producing blaCTX-M-15 isolated from a urethral swab. The blaCTX-M-15 gene was inserted into an ICE structure similar to those recently described in CTX-M-15 producers in Spain. The emergence of XDR H. parainfluenzae producing blaCTX-M-15 is a matter of great concern. Careful surveillance is required to prevent its spread.
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Affiliation(s)
- François Caméléna
- Université de Paris Cité, INSERM, IAME, Paris F-75018, France
- Department of Bacteriology, Saint-Louis-Lariboisière Hospital Group, Assistance Publique-Hôpitaux de Paris, Paris F-75010, France
- French National Reference Centre for Bacterial STIs, Associated Laboratory for Gonococci, Paris F-75010, France
| | - Manel Merimèche
- Université de Paris Cité, INSERM, IAME, Paris F-75018, France
- Department of Bacteriology, Saint-Louis-Lariboisière Hospital Group, Assistance Publique-Hôpitaux de Paris, Paris F-75010, France
- French National Reference Centre for Bacterial STIs, Associated Laboratory for Gonococci, Paris F-75010, France
| | - Mathilde Liberge
- Université de Paris Cité, INSERM, IAME, Paris F-75018, France
- Department of Bacteriology, Saint-Louis-Lariboisière Hospital Group, Assistance Publique-Hôpitaux de Paris, Paris F-75010, France
| | - Clara Maubaret
- Université de Paris Cité, INSERM, IAME, Paris F-75018, France
- Department of Bacteriology, Saint-Louis-Lariboisière Hospital Group, Assistance Publique-Hôpitaux de Paris, Paris F-75010, France
| | - Jean-Luc Donay
- Department of Bacteriology, Saint-Louis-Lariboisière Hospital Group, Assistance Publique-Hôpitaux de Paris, Paris F-75010, France
| | - Muhamed-Kheir Taha
- Invasive Bacterial Infections Unit and National Reference Centre for Haemophilus influenzae, Institut Pasteur, Paris F-75015, France
| | - Sébastien Fouéré
- SFD/GRIDIST and Centre for Genital and Sexually Transmitted Diseases, Assistance Publique-Hôpitaux de Paris, Paris F-75010, France
| | - Béatrice Berçot
- Université de Paris Cité, INSERM, IAME, Paris F-75018, France
- Department of Bacteriology, Saint-Louis-Lariboisière Hospital Group, Assistance Publique-Hôpitaux de Paris, Paris F-75010, France
- French National Reference Centre for Bacterial STIs, Associated Laboratory for Gonococci, Paris F-75010, France
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