Recovery and screening for antibiotic susceptibility of potential bacterial pathogens from the oral cavity of shark species involved in attacks on humans in Recife, Brazil
| Autor: | N. T. Pontes-Filho, José Vitor Lima-Filho, Roberta Ferreira Ventura, F. H. V. Hazin, M. M. C. Souza, Danielle Cristina de Oliveira Nascimento, Juliana A. Interaminense, Jacqueline Ellen Camelo Batista |
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| Rok vydání: | 2010 |
| Předmět: |
Microbiology (medical)
Male Adolescent medicine.drug_class Antibiotics Microbial Sensitivity Tests Microbiology medicine Animals Humans Citrobacter Mouth biology Bacteria General Medicine Enterobacter Biodiversity Acinetobacter biology.organism_classification Proteus mirabilis Citrobacter freundii Anti-Bacterial Agents Viridans streptococci Sharks bacteria Gentamicin Brazil medicine.drug |
| Zdroj: | Journal of medical microbiology. 59(Pt 8) |
| ISSN: | 1473-5644 |
| Popis: | The number of incidents involving sharks and humans at beaches in Recife, on the north-eastern Brazilian coast, is among the highest worldwide. In addition, wound infections in survivors are common; but the nature and risk of the aetiological agents is unknown. In the present study, 81 potential bacterial pathogens were identified in the oral cavity of sharks involved in attacks in Recife, and were subjected to antibiotic susceptibility tests using the standardized disc-diffusion method. The majority were enterobacteria such as Enterobacter spp., Citrobacter spp., Proteus spp., Providencia alcalifaciens, Escherichia coli, Moellerella wisconcensis and Leclercia adecarboxylata. Other Gram-negative bacteria included Vibrio spp., Burkholderia cepacia, Acinetobacter spp. and Pseudomonas spp. In addition, coagulase-positive and coagulase-negative Staphylococcus spp., Enterococcus spp. and Micrococcus spp. were identified, besides Streptococcus spp. from the viridans group. Resistance was especially found in the Proteus mirabilis and Citrobacter freundii, and ranged from 4 to 6 antibiotics out of the 13 tested. Gentamicin and vancomycin were the most effective against Gram-positive cocci strains, whereas levofloxacin was fully inhibitory against Gram-positive and Gram-negative bacteria. These data are discussed in light of a retrospective evaluation of the medical records of three shark victims treated at Restauracao Hospital in Recife. |
| Databáze: | OpenAIRE |
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