Zanetti, Stefania Anna Lucia and Spanu, Teresa and Deriu, Antonella and Romano, Lucio and Sechi, Leonardo Antonio and Fadda, Guido (2001) In vitro susceptibility of Vibrio spp. isolated from the environment. International Journal of Antimicrobial Agents, Vol. 17 (5), p. 407-409. ISSN 0924-8579. Article.
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Bacteria of the genus Vibrio include harmless aquatic strains as well as strains capable of causing epidemics of cholera and human intestinal diseases. Some of these species may show resistance to different antibiotics including cefotaxime, tetracycline and chloramphenicol. The susceptibility to different antibiotics was tested using 40 Vibrio alginolitycus, eight V. parahaemolyticus and six V. vulnificus strains isolated in the coastal waters of Northern Sardinia (Italy). The frequency of resistance to β-lactams was unexpectedly high. More than 80% of Vibrio isolates were resistant to ampicillin and 2.5% of V. alginolyticus were resistant to ceftazidime and cefotetan. Forty percent of V. alginolyticus and three V. vulnificus isolates gave a positive nitrocefin test. PCR was also performed using selected primers chosen for having common sequences of blaTEM and blaSHV genes.
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