Original article
English
Nashnoush H 1, El-Agili ZM 1, Elghamoudi A 1, Msalati A 2, Rahouma A 3, Ghenghesh KS 3
1-Department of Botany, Faculty of Science, Al-Fateh University, Tripoli- Libya 2-Department of Clinical Biochemistry, Faculty of Medicine, Al-Fateh University for Medical Sciences, Tripoli-Libya 3-Department of Microbiology and Immunology, Faculty of Medicine, Al-Fateh University for Medical Sciences, Tripoli-Libya
Libyan J Infect Dis. 2009;3(1):44-49
Abstract
Introduction: Aeromonas spp. have been associated with bacteremia, wound infections and gastroenteritis. A number of virulence factors, including hemolysin production and mannoseresistant haemagglutination (MRHA) have been associated with their pathogenicity.
Materials and Methods: Samples of drinking water obtained from water reservoirs (Faskia) in Tripoli were examined for the presence of Aeromonas. Using standard microbiological procedures, isolated Aeromonas were identified to the species level and tested for hemolysin production, MRHA and susceptibility to antibiotics.
Results: Of 56 water samples examined, 41 (73.%) were positive for Aeromonas spp. Speciation of Aeromonas isolates resulted in 10 (24.4%) being A. hydrophila, 10 (24.4%) A. caviae, 9 (22%) A. sobria, and 12 (29.2%) other Aeromonas spp. All (100%) aeromonads were positive for hemolysin production and 34% showed MRHA. Of the isolated Aeromonas spp., 75.6% were resistant to ampicillin, 34.1% to augmentin, 7.3% to amikacin, 36.6% to chloramphenicol, 2.4% to ciprofloxacin,7.3% to nalidixic acid, 2.4% to tetracycline and 4.8% to trimethoprim-sulphamethoxazole.
Conclusion: Potentially pathogenic antibiotic-resistant Aeromonas spp. are very common in drinking water from water reservoirs (Faskia) in Tripoli.
Keywords: Aeromonas, drinking water,haemagglutination, antibiotic resistance, Libya.
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