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Title: Antibiotic resistance of vibrio parahaemolyticus isolated from pond-reared Litopenaeus Vannamei marketed in Natal, Brazil
Authors: Melo, Ligia Maria Rodrigues de
Almeida, Dulce
Hofer, Ernesto
Reis, Cristhiane Moura Falavina dos
Theophilo, Grace Nazareth Diogo
Santos, André Felipe das Mercês
Vieira, Regine Helena Silva dos Fernandes
Affilliation: Universidade Potiguar. Laboratório de Microbiologia dos Alimentos, Natal, RN, Brasil.
Universidade Federal do Rio Grande do Norte. Laboratório de Microbiologia. Natal, RN, Brasil.
Fundação Oswaldo Cruz, Instituto Oswaldo Cruz. Laboratório de Zoonoses Bacterianas. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Enterobactérias. Rio de Janeiro, RJ. Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Enterobactérias. Rio de Janeiro, RJ. Brasil.
Instituto de Ciências do Mar. Fortaleza, CE, Brasil.
Abstract: Ten out of fifty fresh and refrigerated samples of shrimp (Litopenaeus vannamei) collected from retailers in Natal (Rio Grande do Norte, Northeastern Brazil) tested positive for Vibrio parahaemolyticus. The Kanagawa test and multiplex PCR assays were used to detect TDH and TRH hemolysins and the tdh, trh and tlh genes, respectively. All strains were Kanagawa-negative and tlh-positive. Antibiotic susceptibility testing was done for seven antibiotics by the agar diffusion technique. Five strains (50%) presented multiple antibiotic resistance to ampicillin (90%) and amikacin (60%), while two strains (20%) displayed intermediate-level resistance to amikacin. All strains were sensitive to chloramphenicol. Intermediate-level susceptibility and/or resistance to other antibiotics ranged from 10 to 90%, with emphasis on the observed growing intermediate-level resistance to ciprofloxacin. Half our isolates yielded a multiple antibiotic resistance index above 0.2 (range: 0.14–0.29), indicating a considerable risk of propagation of antibiotic resistance throughout the food chain.
Keywords: Vibrio parahaemolyticus
Litopenaeus vannamei
multiple antibiotic resistance
keywords: Vibrio parahaemolyticus
Litopenaeus vannamei
Resistência a medicamentos
Issue Date: 2011
Publisher: Sociedade Brasileira de Microbiologia
Citation: MELO, Ligia Maria Rodrigues de; et al. Antibiotic resistance of Vibrio Parahaemolyticus isolated from Pond-Reared Litopenaeus Vannamei marketd in Natal, Brazil. Brazilian Journal of Microbiology, v.42, p.1463-1469, 2011.
ISSN: 1517-8382
Copyright: open access
Appears in Collections:IOC - Artigos de Periódicos

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