Isolation of Aeromonas salmonicida from Human Blood Sample: A Case Report

Tewari, Rachna; Dudeja, Mridu; Nandy, Shyamasree; Das, Ayan Kumar

doi:10.7860/jcdr/2014/6883.4032

Cited by 24 publications

(22 citation statements)

References 4 publications

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“…In the present case, the possible route of infection could be eyewash with contaminated water after cataract surgery. Aeromonas species may cause gastrointestinal infections, furunculosis, and septicemia in humans,[ 1 ] but ocular infections such as corneal ulcers or endophthalmitis are very rarely reported. A. hydrophila has been reported to cause endophthalmitis after a penetrating injury, post-traumatic keratitis, contact lens-related keratitis, and endogenous endophthalmitis.…”

Section: Discussionmentioning

confidence: 99%

“…Previously, Aeromonas species were considered as pathogens in cold-blooded animals only, but gradually, they have been recognized as opportunistic pathogens for humans causing gastrointestinal infections and septicemia. [ 1 ] Rarely, they have been reported to cause ocular infections including corneal ulcers and endophthalmitis. [ 2 ] A list of infections caused by genus Aeromonas is mentioned in Table 1 .…”

Section: Introductionmentioning

confidence: 99%

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Aeromonas Salmonicida as a causative agent for postoperative endophthalmitis

Varshney¹,

Das²,

Chaudhary³

et al. 2017

Middle East Afr J Ophthalmol

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We report a case of a 55-year-old female who presented with pain, redness, and profound visual loss in her right eye 2 weeks after cataract surgery. An ophthalmic examination showed light perception vision, corneal edema with severe anterior chamber reaction and hypopyon, exudative membranes on the anterior lens surface, and dense vitreous exudates. Under the impression of acute postoperative exogenous endophthalmitis, immediate pars plana vitrectomy with culture of vitreous aspirate and intravitreal antibiotic injections were performed. Bacterial growth was observed on culture plates and broths which were identified as Aeromonas salmonicida by VITEK 2 compact system. So far, no report has been published regarding endophthalmitis due to A. salmonicida. Here, we present the first report of A. salmonicida isolated from the ocular specimen.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Aeromonas Salmonicida as a causative agent for postoperative endophthalmitis

Varshney¹,

Das²,

Chaudhary³

et al. 2017

Middle East Afr J Ophthalmol

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“…The primary VFs identified in three holding pen samples from the same geographic region (i.e., TX) are purported to originate solely from Aeromonas hydrophila and Aeromonas salmonicida , waterborne pathogens of humans and salmonid fish, respectively ( 36 , 37 ). Interestingly, an extremely large number of reads (range, 1.36% to 2.38% of total filtered reads) were classified under these two bacterial species within these same three holding pen samples, suggesting that there may have been contamination in the holding pen water.…”

Section: Resultsmentioning

confidence: 99%

Use of Metagenomic Shotgun Sequencing Technology To Detect Foodborne Pathogens within the Microbiome of the Beef Production Chain

Yang

Noyes

Doster

et al. 2016

Appl Environ Microbiol

111

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Foodborne illnesses associated with pathogenic bacteria are a global public health and economic challenge. The diversity of microorganisms (pathogenic and nonpathogenic) that exists within the food and meat industries complicates efforts to understand pathogen ecology. Further, little is known about the interaction of pathogens within the microbiome throughout the meat production chain. Here, a metagenomic approach and shotgun sequencing technology were used as tools to detect pathogenic bacteria in environmental samples collected from the same groups of cattle at different longitudinal processing steps of the beef production chain: cattle entry to feedlot, exit from feedlot, cattle transport trucks, abattoir holding pens, and the end of the fabrication system. The log read counts classified as pathogens per million reads for Salmonella enterica, Listeria monocytogenes, Escherichia coli, Staphylococcus aureus, Clostridium spp. (C. botulinum and C. perfringens), and Campylobacter spp. (C. jejuni, C. coli, and C. fetus) decreased over subsequential processing steps. Furthermore, the normalized read counts for S. enterica, E. coli, and C. botulinum were greater in the final product than at the feedlots, indicating that the proportion of these bacteria increased (the effect on absolute numbers was unknown) within the remaining microbiome. From an ecological perspective, data indicated that shotgun metagenomics can be used to evaluate not only the microbiome but also shifts in pathogen populations during beef production. Nonetheless, there were several challenges in this analysis approach, one of the main ones being the identification of the specific pathogen from which the sequence reads originated, which makes this approach impractical for use in pathogen identification for regulatory and confirmation purposes.

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“…Rhizobium radiobacter nitrogen fixing soil bacteria was also identified in the background biota. Aeromonas salmonicida was first isolated in cold-water environments and is considered as pathogen of aquatic vertebrates, but Tewari et al [12] presented the first report of Aeromonas salmonicida isolated from human blood. Sphingobacterium, which is a ubiquitous environmental bacterium genus, was also identified.…”

Section: Successfully Identified Colonies Growing On Chromogenic Colimentioning

confidence: 99%

Microbiological Testing of Drinking Water in the Western Transdanubian Region of Hungary Using Api Tests

Zseni

Miseta²,

Németh

2019

WIT Transactions on Ecology and the Environment

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Using standard and routine methods for drinking water microbiological quality control may lead to uncertainty. In some cases, biochemical tests for confirmation of presumptive colonies have negative results. It can also happen that the target bacteria cannot be found, but the high concentration of the background biota contaminates water sampling points or even the entire water supply system. The aim of the study was to investigate and identify bacterial colonies retrieved from water samples of drinking water supply systems using a relatively cheap, fast and easy-to-use method as well as to acquire information on the presence of pathogens in the background biota. To achieve our goals, water samples from 18 western Hungarian settlements were collected during a two month period. A total of 66 morphologically different bacterial colonies growing on four media were tested for taxonomic identification by three different API (Analytical Profile Index) tests which are suitable for the identification of bacteria at species level. Out of the 66 bacterial colonies involved in the study, 58 could be identified by API tests. During the identification, the presence of 27 different taxa were proved in the water samples. As a result of our research, species (Aeromonas hydrophila, Pseudomonas fluorescens, Burkholderia cepacia) that can cause confusion in the evaluation of water samples by forming morphologically typical colonies on the medium or presenting in high number of colony form units as background contaminants were identified. The presence of species (Pseudomonas aeruginosa, Aerococcus viridans, Aeromonas hydrophila, Gemella morbillorum, Streptococcus constellatus) which originated from the background biota on different agar plates and can cause human diseases, were also confirmed. Even if the organisms which indicate water quality degradation are not present in the water sample, the background biota may contain human pathogenic bacteria that might lead to health problems when enriched in the drinking water supply system.

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Isolation of Aeromonas salmonicida from Human Blood Sample: A Case Report

Cited by 24 publications

References 4 publications

Aeromonas Salmonicida as a causative agent for postoperative endophthalmitis

Aeromonas Salmonicida as a causative agent for postoperative endophthalmitis

Use of Metagenomic Shotgun Sequencing Technology To Detect Foodborne Pathogens within the Microbiome of the Beef Production Chain

Microbiological Testing of Drinking Water in the Western Transdanubian Region of Hungary Using Api Tests

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