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Development of a More Sensitive and Specific Chromogenic Agar Medium for the Detection of Vibrio parahaemolyticus and Other Vibrio Species
Published on: November 8, 2016
Antibiotic-resistant vibrios in farmed shrimp
Renata Albuquerque Costa1, Rayza Lima Araújo1, Oscarina Viana Souza1
1Sea Science Institute, Federal University of Ceará, Avenida Abolição 3207, 60165-081 Fortaleza, CE, Brazil ; Fisheries Engineering Department, Federal University of Ceará, 60440-900 Fortaleza, CE, Brazil.
Abstract:
Antimicrobial susceptibility pattern was determined in 100 strains of Vibrio isolated from the Litopenaeus vannamei shrimp and identified phenotypically. A high antibiotic-resistance index (75%) was observed, with the following phenotypic profiles: monoresistance (n = 42), cross-resistance to β-lactams (n = 20) and multiple resistance (n = 13). Plasmid resistance was characterized for penicillin (n = 11), penicillin + ampicillin (n = 1), penicillin + aztreonam (n = 1), and ampicillin (n = 1). Resistance to antimicrobial drugs by the other strains (n = 86) was possibly mediated by chromosomal genes. The findings of this study support the conclusion that the cultured shrimps can be vehicles of vibrios resistant to β-lactam and tetracycline.
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