The first report of Vibrio fluvialis isolated from a clinical sample in Iran
Abstract
Background and Objectives: Vibrio fluvialis is a Gram-negative, bacillus-shaped, curved bacterium known as an emerging pathogen. There are reports of outbreaks caused by this bacterium worldwide. Iran, especially Qom province, is an endemic region for gastrointestinal diseases caused by Vibrio species. So, the aim was to isolate V. fluvialis from clinical and environmental samples.
Materials and Methods: During six months, 363 clinical and surface water samples were evaluated. The samples were cultured on specific media, and all incubated for 24 hours at 37°C. Suspicious colonies were evaluated by Gram staining and biochemical tests. The BD Phoenix automated microbiology system was used for the final confirmation of the isolated bacteria. Evaluation of antibiotic resistance of isolated strains was also performed according to CLSI standard.
Results: Eight cases (2.2%) of V. fluvialis, including seven from surface water samples (87.5%) and one from clinical samples (12.5%), were isolated. Based on antimicrobial susceptibility testing, all V. fluvialis isolates were susceptible to amikacin, gentamicin, trimethoprim/sulfamethoxazole, ciprofloxacin, tetracycline, ceftazidime, and chloramphenicol. High-level resistance to ampicillin and amoxicillin/clavulanate was also observed. V. fluvialis-infected patient had a mild fever, watery diarrhea, vomiting, nausea, and abdominal cramps that were manifested after drinking contaminated water or eating contaminated vegetables. The patient's symptoms recovered without antibiotic therapy after four days, resulting in self-limiting disease.
Conclusion: The current study is the first human case of V. fluvialis infection isolated in Iran. Therefore, monitoring of water and food samples should be done routinely.
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| Files | ||
| Issue | Vol 14 No 5 (2022) | |
| Section | Original Article(s) | |
| DOI | https://doi.org/10.18502/ijm.v14i5.10962 | |
| Keywords | ||
| Vibrio fluvialis; Gastroenteritis; Drug resistance; Microbial; Iran | ||
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