A Case of <i>Aeromonas trota</i> in an Immunocompromised Patient with Diarrhea

According to recent literature, 95.4% of the <i>Aeromonas</i> strains associated with human clinical cases correspond to four species: <i>Aeromonas caviae</i>, <i>Aeromonas dhakensis</i>, <i>Aeromonas veronii</i> and <i>Aeromonas hydrophila.</...

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Main Authors: Ana Fernández-Bravo, Isabel Fort-Gallifa, Frederic Ballester, Isabel Pujol, Frederic Gomez-Bertomeu, Mariola Domínguez, Miquel Micó, Eva Alcoceba, Josep Maria Simó-Sisó, Maria José Figueras
Format: Article
Language:English
Published: MDPI AG 2020-03-01
Series:Microorganisms
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Online Access:https://www.mdpi.com/2076-2607/8/3/399
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author Ana Fernández-Bravo
Isabel Fort-Gallifa
Frederic Ballester
Isabel Pujol
Frederic Gomez-Bertomeu
Mariola Domínguez
Miquel Micó
Eva Alcoceba
Josep Maria Simó-Sisó
Maria José Figueras
author_facet Ana Fernández-Bravo
Isabel Fort-Gallifa
Frederic Ballester
Isabel Pujol
Frederic Gomez-Bertomeu
Mariola Domínguez
Miquel Micó
Eva Alcoceba
Josep Maria Simó-Sisó
Maria José Figueras
author_sort Ana Fernández-Bravo
collection DOAJ
description According to recent literature, 95.4% of the <i>Aeromonas</i> strains associated with human clinical cases correspond to four species: <i>Aeromonas caviae</i>, <i>Aeromonas dhakensis</i>, <i>Aeromonas veronii</i> and <i>Aeromonas hydrophila.</i> However, other less prevalent species such as <i>Aeromonas trota,</i> are also described from clinical samples. Based on its low incidence, the latter species can be regarded as rare and it is the only <i>Aeromonas</i> species susceptible to ampicillin. From the taxonomic point of view, <i>A. trota</i> is considered a synonym of the species <i>Aeromonas enteropelogenes.</i> The objective of this study is to present a new clinical case associated with <i>A. trota</i> in order to increase the knowledge about this species. The strain was recovered from the feces of a 69-year-old patient with a diarrheal syndrome and peritoneal psammocarcinoma. The preliminary identification as <i>Aeromonas</i> sp. was obtained with the API 20E, but it was characterized as <i>Aeromonas jandei</i> and also as <i>Aeromonas enteropelogenes</i> with different scores with the matrix-assisted laser desorption ionization time of flight (MALDI-TOF). Based on the sequence of the <i>rpoD</i> gene, it was confirmed to be <i>A. trota</i>. The antimicrobial resistance pattern showed that the strain was susceptible to ampicillin, penicillins in combination with beta-lactamase inhibitors, quinolones, carbapenems, aminoglycosides and cephalosporins, except cephalothin. In conclusion, the recognition of an <i>Aeromonas</i> strain susceptible to ampicillin should alert the clinical microbiologist of the possible involvement of this rare species. Furthermore, the MALDI-TOF database should be updated indicating that the species <i>A. enteropelogenes</i>, is a synonym of <i>A. trota</i>.
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spelling doaj.art-b99f5c3a09a7471e820e26a5c485e43c2022-12-21T19:32:04ZengMDPI AGMicroorganisms2076-26072020-03-018339910.3390/microorganisms8030399microorganisms8030399A Case of <i>Aeromonas trota</i> in an Immunocompromised Patient with DiarrheaAna Fernández-Bravo0Isabel Fort-Gallifa1Frederic Ballester2Isabel Pujol3Frederic Gomez-Bertomeu4Mariola Domínguez5Miquel Micó6Eva Alcoceba7Josep Maria Simó-Sisó8Maria José Figueras9Unidad de Microbiología, Departamento de Ciencias Médicas Básicas, Facultad de Medicina y Ciencias de la Salud, IISPV, Universidad Rovira i Virgili, Reus 43201, SpainHospital Universitari Sant Joan de Reus-Laboratori de Referència de Tarragona i Terres de l’Ebre, Reus 43201, SpainHospital Universitari Sant Joan de Reus-Laboratori de Referència de Tarragona i Terres de l’Ebre, Reus 43201, SpainUnidad de Microbiología, Departamento de Ciencias Médicas Básicas, Facultad de Medicina y Ciencias de la Salud, IISPV, Universidad Rovira i Virgili, Reus 43201, SpainUnidad de Microbiología, Departamento de Ciencias Médicas Básicas, Facultad de Medicina y Ciencias de la Salud, IISPV, Universidad Rovira i Virgili, Reus 43201, SpainDepartamento de Geriatría, Hospital de la Santa Creu i Jesús, Tortosa 43590, SpainLaboratori de Referència de Catalunya, Barcelona 08820, SpainLaboratori de Referència de Catalunya, Barcelona 08820, SpainHospital Universitari Sant Joan de Reus-Laboratori de Referència de Tarragona i Terres de l’Ebre, Reus 43201, SpainUnidad de Microbiología, Departamento de Ciencias Médicas Básicas, Facultad de Medicina y Ciencias de la Salud, IISPV, Universidad Rovira i Virgili, Reus 43201, SpainAccording to recent literature, 95.4% of the <i>Aeromonas</i> strains associated with human clinical cases correspond to four species: <i>Aeromonas caviae</i>, <i>Aeromonas dhakensis</i>, <i>Aeromonas veronii</i> and <i>Aeromonas hydrophila.</i> However, other less prevalent species such as <i>Aeromonas trota,</i> are also described from clinical samples. Based on its low incidence, the latter species can be regarded as rare and it is the only <i>Aeromonas</i> species susceptible to ampicillin. From the taxonomic point of view, <i>A. trota</i> is considered a synonym of the species <i>Aeromonas enteropelogenes.</i> The objective of this study is to present a new clinical case associated with <i>A. trota</i> in order to increase the knowledge about this species. The strain was recovered from the feces of a 69-year-old patient with a diarrheal syndrome and peritoneal psammocarcinoma. The preliminary identification as <i>Aeromonas</i> sp. was obtained with the API 20E, but it was characterized as <i>Aeromonas jandei</i> and also as <i>Aeromonas enteropelogenes</i> with different scores with the matrix-assisted laser desorption ionization time of flight (MALDI-TOF). Based on the sequence of the <i>rpoD</i> gene, it was confirmed to be <i>A. trota</i>. The antimicrobial resistance pattern showed that the strain was susceptible to ampicillin, penicillins in combination with beta-lactamase inhibitors, quinolones, carbapenems, aminoglycosides and cephalosporins, except cephalothin. In conclusion, the recognition of an <i>Aeromonas</i> strain susceptible to ampicillin should alert the clinical microbiologist of the possible involvement of this rare species. Furthermore, the MALDI-TOF database should be updated indicating that the species <i>A. enteropelogenes</i>, is a synonym of <i>A. trota</i>.https://www.mdpi.com/2076-2607/8/3/399aeromonas trotaaeromonas enteropelogenesampicillinmaldi-tof
spellingShingle Ana Fernández-Bravo
Isabel Fort-Gallifa
Frederic Ballester
Isabel Pujol
Frederic Gomez-Bertomeu
Mariola Domínguez
Miquel Micó
Eva Alcoceba
Josep Maria Simó-Sisó
Maria José Figueras
A Case of <i>Aeromonas trota</i> in an Immunocompromised Patient with Diarrhea
Microorganisms
aeromonas trota
aeromonas enteropelogenes
ampicillin
maldi-tof
title A Case of <i>Aeromonas trota</i> in an Immunocompromised Patient with Diarrhea
title_full A Case of <i>Aeromonas trota</i> in an Immunocompromised Patient with Diarrhea
title_fullStr A Case of <i>Aeromonas trota</i> in an Immunocompromised Patient with Diarrhea
title_full_unstemmed A Case of <i>Aeromonas trota</i> in an Immunocompromised Patient with Diarrhea
title_short A Case of <i>Aeromonas trota</i> in an Immunocompromised Patient with Diarrhea
title_sort case of i aeromonas trota i in an immunocompromised patient with diarrhea
topic aeromonas trota
aeromonas enteropelogenes
ampicillin
maldi-tof
url https://www.mdpi.com/2076-2607/8/3/399
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