Aeromonas Hydrophila-Associated Diarrhea in a Neonate

Díaz, Alfonso Martín; Velasco, A C; Hawkins, Federico; Cabañas, Fernando

doi:10.1097/00006454-198611000-00022

Cited by 9 publications

(5 citation statements)

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“…A. hydrophila AER 19 and A. sobria AER 14 were described in a previous study (1). Xanthomonas maltophilia (formerly Pseudomonas maltophilia) GM55 was obtained from St. Joseph Hospital, Omaha, Nebr.…”

Section: Methodsmentioning

confidence: 99%

“…as enteric pathogens in humans has increased in recent years, in part because of better methods and isolation techniques. These bacteria are implicated in a wide spectrum of enteric diseases ranging in clinical severity from mild diarrhea to acute gastroenteritis in both pediatric and adult populations (9,14,17,20,30,35). Furthermore, various Aeromonas species can be isolated from individuals with wound infections (17,18), and recovery of these organisms from severe infections, like septicemia, often involves patients with other underlying illnesses (3,18,19).…”

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confidence: 99%

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Purification and characterization of inducible beta-lactamases in Aeromonas spp

Iaconis

Sanders

1990

Antimicrob Agents Chemother

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13-Lactamases from Aeromonas hydrophila and A. sobria were purified and characterized. Both species produced 1-lactamases that were inducible by either cefoxitin or imipenem. These species were resistant to ampicillin and cephalothin but not imipenem. Isoelectric focusing of sonic extracts revealed one band at pl 8.0 and a second band at pl 7.0 for A. hydrophia. Likewise, A. sobria produced two bands, one at pI 8.4 and the other at pl 7.0. Two enzymes from each species were separated by flatbed electrofocusing gel and purified to homogeneity. The molecular weight of the pI 7.0 enzyme (Al) from both species was estimated to be 42,500, whereas the pI 8.0 (A2h) and 8.4 (A2s) enzymes ofA. hydrophila and A. sobria had molecular weights of 31,500 and 35,000, respectively, on sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The relative Vm,.values for cephalothin, penicillin, and imipenem for these enzymes indicated that Al was primarily a cephalosporinase while A2h and A2s were penicillinases highly active against carbapenems. Al was susceptible to inhibition by cloxacillin, while the A2 enzymes were inhibited by clavulanic acid and EDTA and required zinc for activity. Thus, there appear to be two distinct inducible 1-lactamases in A. hydrophila and A. sobria that play an important role in the 13-lactam resistance of these species.

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Section: Methodsmentioning

confidence: 99%

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confidence: 99%

Purification and characterization of inducible beta-lactamases in Aeromonas spp

Iaconis

Sanders

1990

Antimicrob Agents Chemother

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“…Many studies have focused on the role of these microorganisms as strict or opportunistic pathogens of several poikilothermic animals (4,7,8,31,34,35). Nevertheless, recent studies have shown that the motile species of Aeromonas, mainly A. hydrophila, are the etiological agents responsible for different human infections (3,5,6,10,14,15,25,36). However, the relationship between the presence of A. hydrophila in recreational waters and the acquisition of illness has still not been definitively determined (5).…”

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confidence: 99%

Evaluation of several selective media for recovery of Aeromonas hydrophila from polluted waters

Arcos

Vicente

Moriñigo

et al. 1988

Appl Environ Microbiol

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Eleven media were studied for their suitability in the selective isolation ofAeromonas hydrophila. Preliminary results showed that five of them (inositol-brilliant green-bile salts agar, bile salts-brilliant green agar, Rimler-Shotts agar, xylose-sodium deoxycholate-citrate agar, and dextrin-fuchsin-sulfite agar) allowed the growth of several microorganisms that are usually present in the same samples in which A. hydrophila is found. Six media (mA agar, modified Rimler-Shotts agar, DNase-toluidine blue-ampicillin agar, Pril-xylose-ampicillin agar, MacConkey-trehalose agar, and starch-bile salts agar) were selected for evaluation as recovery selective media on the basis of their efficiency in the isolation of A. hydrophila from natural water samples. mA agar showed the best recovery rate and also an acceptable specificity, but its selectivity was low. Another medium that can be considered is DNase-toluidine blue-ampicillin agar, which showed good accuracy, but its specificity was low.

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“…A. hydrophila is a gram-negative bacillus that is oxidase- and catalase-positive and frequently found in aquatic environments [ 24 ]. Although A. hydrophila gastroenteritis is a recognized foodborne illness that is more prevalent in the pediatric population, it should be considered in an atypical presentation of diarrhea in adults [ 9 , 11 , 25 , 26 ]. Gastroenteritis caused by this bacterium often presents in an acute or subacute manner with watery diarrhea that is treatable with medication but can often be mistaken for C. difficile [ 12 ].…”

Section: Discussionmentioning

confidence: 99%

“…C. difficile is a common causative organism of watery diarrhea following antibiotic use; cases of diarrhea due to C. difficile have been increasing in frequency worldwide in the past decade, with community prevalence as high as 20% in some outbreaks [5,6]. Although a few cases of Aeromonas hydrophila gastroenteritis in healthy adults have been reported in the literature [7,8], most have been in pediatric [9][10][11][12], elderly [8,[13][14][15][16], and/or immunocompromised patients [13,17]. In surveys of fecal samples from outbreaks of diarrheal illnesses across the globe, A. hydrophila is infrequently found, even in comparison to other Aeromonas spp.…”

Section: Introductionmentioning

confidence: 99%

Watery Diarrhea Is Not Always Clostridioides difficile: A Case Report of Aeromonas hydrophila Gastroenteritis

Dharanendra,

Gillet,

Geer

et al. 2024

Cureus

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Aeromonas species can cause acute gastroenteritis but are much less commonly observed in the hospital setting than other bacteria. Most cases of Aeromonas hydrophila gastroenteritis reported in the literature have occurred in pediatric, elderly, and/or immunocompromised patients. We present a case of subacute watery diarrhea due to A. hydrophila infection in an otherwise healthy 48-year-old female patient with prior abdominal surgeries and recent hospitalization for a catheter-associated urinary tract infection (CAUTI) for which she received antibiotics. The patient presented with 10 days of increasingly frequent non-bloody, watery, foul-smelling diarrhea as well as decreased oral intake, cramping bilateral upper abdominal pain, chills, and malaise. Initial diagnoses considered included Clostridioides difficile in the setting of CAUTI and antibiotic use, small intestinal bacterial overgrowth, dumping syndrome related to bariatric surgery, and malabsorption. A computed tomography scan of her abdomen/pelvis, admission labs, and flexible sigmoidoscopy showed no relevant findings. Stool cultures eventually returned positive for A. hydrophila. The case is an uncommon presentation of Aeromonas infection that could be easily missed while other diagnoses are pursued. Early treatment of Aeromonas infection can be crucial in preventing advanced forms of disease such as septicemia and necrotizing fasciitis.

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Aeromonas Hydrophila-Associated Diarrhea in a Neonate

Cited by 9 publications

References 0 publications

Purification and characterization of inducible beta-lactamases in Aeromonas spp

Purification and characterization of inducible beta-lactamases in Aeromonas spp

Evaluation of several selective media for recovery of Aeromonas hydrophila from polluted waters

Watery Diarrhea Is Not Always Clostridioides difficile: A Case Report of Aeromonas hydrophila Gastroenteritis

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