Antibiotic resistance of Vibrio parahaemolyticus isolated from pond-reared Litopenaeus vannamei marketed in Natal, Brazil
AUTOR(ES)
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
FONTE
Braz. J. Microbiol.
DATA DE PUBLICAÇÃO
2011-12
RESUMO
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.
Documentos Relacionados
- Numerical Taxonomy of Coryneform Bacteria Isolated from Pond-Reared Shrimp (Penaeus aztecus) and Pond Water1
- Microbial Flora of Pond-Reared Brown Shrimp (Penaeus aztecus) 1
- Genomic basis of antibiotic resistance in Vibrio parahaemolyticus strain JPA1
- In vitro bioactivity of the ethanolic extracts from Moringa oleifera seeds against Vibrio strains with virulence factors and antibiotic resistance, isolated from the Litopenaeus vannamei hemolymph.
- Culturable fungal diversity of shrimp Litopenaeus vannamei boone from breeding farms in Brazil